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Weldon Spring MO on the Katy Trail and Rock Island Trail

Mile marker 56
Population: 5270

Repair Station
Repair Station
Public Restroom
Point of Interest
Point of Interest
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Katy Trail
Monarch Levee Trail
Busch Greenway at Missouri Research Park
Hamburg Trail
Lost Valley Trail
Bike Stop Cafe Chesterfield
Chesterfield Outlets #140, Chesterfield
Chesterfield /hwy 64 bridge

Lewis & Clark Historical Marker
Weldon Spring

MO Research Park
Missouri Research Park Court, Weldon Spring

Weldon Spring Interpretive Center
7295 Highway 94 South, Weldon Spring
Weldon Spring Trailhead
Weldon Spring

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Side Trips and Side Trails around Weldon Spring
Length (miles)
Monarch Levee Trail
Missouri River crossing connects to Chesterfield
Busch Greenway at Missouri Research Park
Scenic connector trail to Busch Greenway parking lot in Missouri Research Park
Hamburg Trail
Gravel trail with a few hills connects to Weldon Spring Interpretive Center
Lost Valley Trail
Beginner and intermediate MTB trail.

Forum Discussions about Weldon Spring

Weldon Spring
Mr. Bump from Hannibal on 12/06/2018 11:52 AM:
Tools and bike pump at the trailhead. Do your research on this area before you go, as it's both interesting and a little scary. Don't drink the water, and keep moving.

Weldon Spring
Trail Rider on 11/17/2016 01:07 AM:
The connector to Research Park is closed due to bridge issues. Signs at the bridge indicate the problem is more serious than originally thought and the connector is likely to be closed until spring of 2017.

Ray (webmaster) on 11/19/2016 09:08 AM:
Yep, looks pretty bad, here's a photo:

Ray (webmaster) on 11/19/2016 09:24 AM:
Another photo from a different angle:

Jim W from St Louis on 11/19/2016 11:05 AM:
Wow...It sure appears that this bridge was designed with pedestrian and bike traffic in mind, not 2 ton commercial vehicles.

KBLS on 03/14/2017 07:26 AM:
I have been told that the bridge is now repaired within the past week. Can anyone confirm this?

Rich from Saint charles on 03/14/2017 08:16 AM:
Yes everyone the Duckett Creek Bridge on the Busch Greenway is open nowk6FW2R

Maryjo from St Charles on 03/14/2017 08:38 AM:
Thanks Rich looking forward to hitting the trail.

Parking at MO Research Park
Chris from St. Louis on 04/11/2013 01:48 PM:
Has anyone ever parked their car here overnight? Is it even possible to leave a car there overnight?

I am planning on riding for 2 nights and need to leave my car around Weldon Spring and I hear the Weldon Spring trailhead is not that safe.

Anonymous on 08/19/2014 05:12 PM:
I left mine here for 1 night in Sept., 2012. Had no problem.

dave from high ridge on 03/16/2016 03:54 PM:
Any updates on this? I want to leave a car overnight this spring

Anonymous on 03/16/2016 09:54 PM:
There's a park and ride commuter lot near 94&40 intersection at Research Park up the hill from the Research Connector Trail Head. I don't know the rules, but it seems like there would be at least some cars parked there at any time of day.

Anonymous on 03/17/2016 04:33 AM:
If the weather is pretty good the Weldon Springs trailhead is pretty busy. Only problem the late hours. I would leave the vehicle and place a sign inside that says,"Vehicle equipped with remote surveillance with direct contact to local law enforcement authorities". It could work.

mph from Saint Louis on 03/18/2016 02:25 PM:
We have left cars at the Ducket Creek/Bush Greenway trailhead several times for a weekend and have not had any issues. Maybe we have been lucky, we usually leave Saturday morning and return Sunday evening.

Weldon Spring Trailhead MM 56
steve k from saint louis, mo on 06/28/2015 05:52 PM:
The Weldon Spring Trailhead has a self serve bike maintenance station/air pump at the trailhead. I thought I was seeing things this morning, but I am sure it was real.

Jim W from St Louis on 06/28/2015 06:16 PM:
Noticed the bicycle tools (cable attached) and tire pump--nice additions. Hopefully this is a test to see if they will be treated respectfully and will be incorporate into other trailheads.

Jim from St Thomas on 06/28/2015 07:54 PM:
They have had the same setup at the JC trailhead for a while now and I think at least one other trailhead on the western end. It would be nice to have these at a minimum of every other trailhead.

Cathy from Jefferson City on 06/28/2015 08:37 PM:
I think I saw one at Hartsburg today. They may have installed them at several, most trailheads. Does anyone know who paid for them? I am guessing it was DNR. Whoever it was, god Bless them.

Oh, and the trail between Jefferson City and Hartsburg was great today. The condition was fine. There was a lot of water along the trail, but none on the trail.

Cathy from Jefferson City on 06/28/2015 10:14 PM:
Sorry, I should have capitalized God in the previous post. God bless whoever put those bike maintenance stations/air pumps at the trailheads.

Anonymous on 06/30/2015 10:41 PM:
Tools at Black Walnut, too. dennis (for some reason I can't type my name in the area provided)

Weldon Spring
Jamie L from Denver, IN on 05/27/2015 04:09 AM:
Does anyone know if there is a place to camp, or at least pitch a small tent near Weldon Spring? Planning a trip through there in Sept.

Anonoh on 05/27/2015 07:08 AM:
You may need dosimetry if you camp overnight around there. Defiance, Augusta west or St. Charles east would be less toxic.

Sharonbikes from Kansas City on 05/27/2015 07:46 AM:
Weldon Springs Conservation area may allow camping, I'm not sure. Plants in Weldon Springs processed uranium ore during WWII and there is large uranium containment site not far from the Trail. Klondike Park just east of Augusta is a great place to camp. Nice shower house and a camp kitchen with a two burner stove, sinks and electric outlets.

Greens Bottom
Sean M from Cleveland, OH on 09/21/2014 06:06 AM:
During my last leg of the Katy Trail into St. Charles, I did a bad job of watching the level of my water bottle. With neither Defiance nor Weldon Spring offering water and the sun beating down on me, I was looking for relief. Across the street from the Greens Bottom trailhead (about 5 miles outside of St. Charles) there is Thies Farm (http://www.thiesfarm.com), which had fresh produce, pies, and water/drinks. They even offered to let me fill my water bottle.

Weldon Spring
BikerBoy from Edwardsville, IL on 10/03/2011 11:54 AM:
Went through this detour area this weekend. The detour is not marked well (esp when the sun is shading the signs). Ended up accidentally riding up the Hamburg trail for a bit before a nice cyclist told me to turn around and pointed out the detour. Several others were making the same mistake as I passed by.

merkin4 from St. Peters MO on 10/03/2011 02:39 PM:
I'd have to agree with this. Keep in mind that you'll want to make the sharpest turn you possibly can of the routes offered, both when going west and east. The trail just about doubles back upon itself - remember that and you should be fine.

Weldon Spring
merkin4 from St. Peters MO on 05/17/2011 01:13 PM:
Highway 94 is undergoing construction between 64/40 and Defiance MO. For the next two weeks (mid and late May 2011) the road is closed, cutting off all drive-in access to the Weldon Spring trailhead.

Alternatives in the area include access from the Business Park trail to the northeast, or Defiance to the southwest. The Business Park trailhead starts near a sewage treatment plant, and the mosquitos seem to be fierce and impervious to any repellant short of a flamethrower.

merkin4 from St. Peters MO on 05/31/2011 02:53 PM:
Highway 94 is again open, and auto access to the Weldon Spring trailhead parking lot has been restored.

Weldon Spring - Hamburg Trail
Andrew Mayberry from St. Louis, Mo. on 04/08/2007 08:18 PM:
Hamburg Trail worst mark trail ever.From the KATY TRail, after about 3.5 mi trail goes straight (what looks like the trail)turns into over grown grass & fallen trees. back track to what looks like survace road. Trail joins black top road, no sings, go to the right,through tunnels till black top turns into gravel road, signs say restrigeted area no access. turn back again, through tunnel take survice road up to Hwy 94. Down

to route D. Looking to the right the Humberg Trail went through the restricted area. At 94 & Route D turn right. Trail leads down by lake # 10 (Busch Conservation Area)To 2 red cattle gates (no signs)go around gate follow gravel road to bigger gravel road, no signs,To be met by gun shots. Turn right, go by lake 36, no sings, ride on gravel road to be run off into weeds by passing trucks. I give up after 1 mi. Go back to gravel road that took me back to lake 10, no signs for Hamburg Trail, Take trail back to Route D & Hwy94 no signs. look across 94 looks like gravel parking lot for grave yard.Go through gravel parking lot to the right and you'll see Hamburg Trail sign.

This will lead through the restricted area, no sign's to say it's the bike trail. Only a 8 mi. trail, I spent more time getting lost, than I spent ridding the trail.

bbridge from Dallas on 04/16/2007 01:48 PM:
Here's a google map to the trailhead from 40.


lenning from St. Peters, MO on 05/15/2007 12:58 PM:
I agree with Andrew. The trail is not well marked. Being somewhat familiar with the layout of the area, and having looked at the map on the web, I was able to guess well enough to follow it from the Katy to the wildlife center. Getting back to the trail was another adventure. Better pay close attention or you'll end up riding from lake to lake looking for the route back. There are no signs pointing you back to the trail.

Matt from St. Charles, Missouri on 07/31/2008 04:43 PM:
I agree that the Hamburg Trail is not well marked. I will add that it was fun exploring the small side trails that I would have skipped past if the Hamburg itself had been better marked. Since the trail is only 8 miles long, reaching dead ends and having to back track a few times is not a big deal. If you plan on riding around Busch Wildlife once you reach the end of the Hamburg, you better bring a map of Busch. Its easy to get lost there with out the area map. I prefer to turn around once I get to Busch Wildlife and go back and ride more of the Katy Trail.

cunninghamair on 08/01/2008 08:01 AM:
This original post deterred me from riding the Hamburg last year. This year I got brave and gave it a shot. WE HAD NO PROBLEM NAVIGATING DOWN TO THE KATY! There are a few off-shoots that quite obviously are not the main trail. THE MAIN TRAIL IS NOT OVERGROWN AND THERE ARE NO DOWN TREES. I do wish they would put more signs at the trailhead to get you going the correct way. Then again--I enjoy having the trail to myself--so no never mind!

Blake from St. Peters on 08/10/2008 12:37 AM:
Yes I love like the hamburg because it gives you a break from the flatness of the KT. There is

a really steep hill right in the middle of the hamburg. Starting the hamburg from the katie

trail is imperative because it's up hill from there. that way you can take it easy coming back if

your out of energy.

Anonymous on 11/11/2009 06:30 PM:
If you can't navigate the Hamburg from the Katy, then you probably can't find your ass with both hands. It's quite a simple process: from the Weldon Spring trail head proceed west on the Katy. In less than a mile you will see a sign that identifies the Hamburg trail. From there you will go straight on the Hamburg and follow the trail, which goes through a small tunnel under hwy 94, and continues in a straight and unconfusing manner for about 6 miles, all the way to Busch Wildlife. I've been running it for years and it has never been overgrown, but occasionally there has been a downed tree following a storm or strong winds...just like I've seen on the Katy a million times.

The stupidity of certain people simply amaze me! What part of "turn right and go straight along the trail" is so confusing!

Anonymous on 11/12/2009 09:14 AM:
tha intelaginz a sum folk reely git me!

Jim from St. Thomas on 11/12/2009 12:37 PM:
"What part of "turn right and go straight along the trail" is so confusing!"

Sometimes the trail curves.........then if you keep going straight you go right in the ditch. You gotta stay sharp.

Speedy on 11/12/2009 04:39 PM:
Great trail but agree with others that it is poorly marked and has nothing to do with one's "stupidity". I personally never had an issue when I first rode the trail but I knew the area to an extent. There several spots that aren't marked where going straight rather than right would make sense. Also at Hwy 94 there's a big disconnect between where the trail starts/ends again. I think the confusion is justified.

Doug from Bluffton on 11/12/2009 09:45 PM:
"Dazed and confused for weeks at a time, but never lost!" Have you ever noticed that the negative, hateful, antagonistic posts are almost always anonymous? It's like the person posting is already ashamed of what they are doing.

Ken from St. Charles on 11/12/2009 09:48 PM:
I've found the easiest way to use the Hamburg trail is to park in the cemetery parking lot at the Hwy 94 and D intersection. If you park at the west end of the parking lot, you can go straight through the gate onto a gravel path. This path will wind its way to a paved section of road. This road will take you back under Hwy 94. After passing under 94 veer to the left and follow the trail all the way to the KATY between Weldon Spring and Defiance.

If you ride from the cemetery out to Klondike park and back, it's about 26.5 miles round trip. This includes climbing the path from the KATY into Klondike, riding around the park, climbing the very steep path up to the overlook and then exiting out the front of Klondike. The climb to the overlook is not real long, but it's plenty steep.

Just before reaching Hwy 94 leaving the front of Klondike, there is a gravel path to the right that will take you back to the KATY at a point near the Klondike boat ramp.

I hope this helps.

Trek on 11/13/2009 08:02 AM:
I'd be ashamed to know that "I've been running it (the trail) for years" and then felt so inclined to call someone stupid because they simply weren't as familiar with it as I was.

Such a deal for some folks I guess.....to have the attitude that if you don't know everything that I do and don't have all of the life experience that I do, then.....well you're just inept and stupid.

Jay Nowak from st chuck on 04/13/2010 11:55 AM:
Being as a Teen Thru out this region i know everything he said the part he did bad was stay on road (road leads to army reserve propety) on way to katy make a left after u go through tunnel under 94 that is where a major sign should be

Matt from St. Peters on 01/26/2011 09:07 PM:
Hamburg also connects to the lost valley trail...another good mountain bike trail