Missouri | Missouri Ozarks

Meramec RiverOnondaga Cave State Park to Campbell Bridge Access

Five-mile Meramec float from the Onondaga Cave State Park canoe launch to MDC Campbell Bridge Access. Missouri State Parks and MDC document the public access pair, and the Sullivan USGS gauge supports a conservative same-day level check.

Route location

Loading the route snapshot. This usually takes a few seconds.

Open access map
DistanceAbout 5 mi
DifficultyEasy
Typical timeAbout 2 hr to 3.5 hr depending on level
ShuttleCar shuttle
The Meramec River runs past Onondaga Cave State Park with wooded banks and low gravel edges.
Route photoMeramec River at Onondaga Cave State ParkPhoto by Kbh3rd via Wikimedia Commons
View primary source
Embed this route

Route alerts

Email me when this route improves

We'll email you when this route climbs into Good or Strong. Every email includes an unsubscribe link.

We only email on a new threshold crossing.

Trip details

Access rules, camping and seasonal notes.

Permits, camping and season
PermitsNone notedNo route-specific paddling permit is known. Follow Missouri State Parks rules at Onondaga Cave State Park, MDC rules at Campbell Bridge Access, and any posted launch, parking, hours, or temporary-closure signs.
CampingOptions nearbyOnondaga Cave State Park has camping by reservation or park rules, but this river reach should be treated as a day float unless you have a separate legal overnight plan.
SeasonMar-NovThe spring-fed Meramec often supports warm-season floating, but low late-summer riffles, weekend traffic, and fast rain rises still matter. Check Onondaga Cave State Park status, MDC access conditions, and the same-day gauge trend before launching.

Access and shuttle

Launch at the Onondaga Cave State Park Meramec River canoe launch or boat ramp and take out at MDC Campbell Bridge Access. MDC documents this as a five-mile canoe float, with the downstream Sullivan USGS gauge used as a conservative low-water check.

Access map

Skip map

Pulling access map tiles. Usually under 5 seconds.

End of map
Start

Put-in

Onondaga Cave State Park canoe launch / boat launch
DirectionsOpen map

Missouri State Parks says the canoe launch is downstream from the Meramec River bridge and the boat ramp is upstream from the bridge; choose the signed launch that matches your craft and current park rules.

Finish

Take-out

Campbell Bridge Access
DirectionsOpen map

Campbell Bridge is an MDC river access with a concrete boat ramp, dedicated canoe launch, restroom, and parking, but same-day signs and local conditions still control use.

Road shuttle

Use a short two-car shuttle between Onondaga Cave State Park and MDC Campbell Bridge Access on Highway N. Check Onondaga Cave State Park status and inspect the Campbell Bridge landing before launching.

Additional access notes
  • The Campbell Bridge coordinate is a practical public paddling-location anchor paired with MDC route and map evidence; verify the take-out from the road before launching.
More route and safety guidance
  • MDC planning material identifies Onondaga Cave State Park to Campbell Bridge as a five-mile canoe float, and Campbell Bridge has a concrete ramp, canoe launch, restroom, and parking. Verify the Campbell landing from the road before launching.
  • Keep the 200 cfs floor as a conservative low-water check. High or rising water can add fresh wood, bridge current, faster bends, and harder landings; do not use private banks or gravel bars as substitute access.
Terms and safety
Plan this paddle

Choose your trip times

No account needed. Check the selected access points above, then choose both dates and times. For an overnight paddle, set take-out to the following date.

Trip schedule

Times use the selected time zone. Check it against the river’s location before saving or sharing.

Browser plans stay on this device. Sharing opens your device’s share tools or gives you text to copy.

Download GPX Route geometry only; no schedule required.

Conditions

Check how the river is changing and what weather to expect.

Recent trend

Checking preferred range.

Checking trend.

------------
Detailed weather

Hourly forecast

Checking weather.

Loading today's forecast.

Short-route forecast

Checking the next several hours.

Checking the best short-route window.
----Loading--

Tomorrow and the weekend

Forecasts can change. Check current conditions again before leaving.

TomorrowChecking

Waiting on forecast.

WeekendChecking

Waiting on forecast.

Station details and river cameras

Sources and methodology

Review source dates and published guidance below. We have not inspected this trip in person.

Data reliability: checking
Data status
Checking live inputs.

Pulling the latest gauge and weather. Usually under 10 seconds.

Gauge inputChecking

Waiting on the gauge read.

Weather inputChecking

Waiting on weather.

Next stepChecking

Waiting on enough data to give the next step.

This rating reflects whether the gauge measures this part of the river, whether published water-level guidance is available, and how recently the data was updated.

  • Checking data sources and update times.
Water levels, published guidance and update times

These readings and published water-level limits help explain today’s score.

Gauge siteMeramec River near Sullivan, MO
DischargeChecking
Gauge heightChecking
24h trendChecking
24h changeChecking
Current bandChecking
Rain last 24hChecking
Rain last 72hChecking
Air tempChecking
Water tempChecking
WindChecking
GustsChecking
Rain timingChecking
Preferred rangeNeeds paddler reports
Known low-water floor200 cfs
High thresholdWater-level guidance unavailable
Evidence strength behind the rangeLocal route guidance
Gauge observedChecking
Paddle Today updatedChecking
Main source behind this scoreRivers.MOHERP Sullivan gauge rating and Meramec trip logs
Gauge sourceChecking
Weather sourceChecking
Rainfall sourceChecking
Published evidence and verification notes

These notes cover the access details, route quirks, and source caveats most likely to matter once you get there.

  • Official route shapeOnondaga Cave State Park to Campbell Bridge Access, 5 miles

    MDC planning material for Campbell Bridge Access says a canoe float from Onondaga Cave State Park to Campbell Bridge Access is 5 miles.

    Source

  • Public put-inOnondaga Cave State Park canoe launch / boat ramp

    Missouri State Parks says paddlers can access the Meramec River from the park canoe launch or boat ramp, and its boat-launch page publishes coordinates for the Onondaga launch.

    Source

  • Public take-outCampbell Bridge Access

    MDC says Campbell Bridge Access provides Meramec River access with a concrete boat ramp, dedicated canoe launch, restroom, and ample parking.

    Source

  • Direct gaugeUSGS 07014500

    USGS operates Meramec River near Sullivan, MO, the live Meramec gauge downstream in this route corridor and the same gauge already configured for the neighboring Sullivan-area Meramec route.

    Source

  • Low-water floor200 cfs minimum-only

    Rivers.MOHERP rates the Sullivan gauge good beginning at 200 cfs and includes nearby Meramec trip logs rated good from roughly 294 to 543 cfs, with a low but floatable report at 238 cfs.

    Source

  • Gauge check during route review · 2026-05-30574 cfs / 3.38 ft at 2026-05-30 04:30

    This reading was saved when we checked the guide. It is not today’s water level. Check the current gauge and local conditions before paddling.

    Source

  • High-water cautionHigh and flood categories are not casual-float water

    Rivers.MOHERP describes high water as potentially dangerous for young or inexperienced paddlers and flood water as avoidable for casual trips because obstacles can be treacherous or deadly.

    Source

Check the source links
Other routes nearby

See something outdated?

Access, hazards, wood, and shuttle details change. Send a quick correction if something looks off.