Iowa | Eastern Iowa

Wapsipinicon River

Sherman Park to Allen's Grove Access

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Start with the verdict, current conditions, route plan, and quick facts before you commit to the drive.

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DifficultymoderateThis approximately 11-mile split avoids the full 21-mile commitment but remains an intermediate lower-river route with wood, side channels, private banks, and remote response.
PermitsNone notedNo route-specific paddling permit is known. Follow posted county park rules, Iowa boating/PFD rules, and private-property limits.
CampingOptions nearbySherman Park has endpoint campground support. Scott County says no camping is allowed at Allen's Grove, so this split should be planned as a day route unless camping separately at Sherman.
SeasonMay-SepLate spring through early fall is the practical lower-Wapsi window. Dry late summer can make sandbars and side-channel choices tricky; storms can float wood and make eddies/ramps harder to use.

Dial in the shuttle, distance, and access.

Use this section once the route looks viable and you need to turn it into an actual trip plan.

Access, shuttle, and map

Paddle the first half of the official Sherman-to-Gambril section, taking out at Allen's Grove rather than committing to the full 21-mile lower-river day.

Plan a shorter segmentOptional

Pick a shorter segment

This changes launch and take-out logistics, not today's river score.

On-water distanceAbout 11 miLake to creek
On-water timeAbout 5 to 7 hrFull route option
ShuttleSelf-shuttleChoose a shorter in/out pair for a shorter day.

Peltier Lake to Long Lake is the full route. Shorter access pairs are useful when wind, time, or group energy changes the plan.

Start

Put-in

Sherman Park boat rampOpen map

Allen's Grove is about a quarter mile south of the Y52/956 bridge and has a cement ramp and eddy, but same-day water level and ramp condition still control usability.

Finish

Take-out

Allen's Grove AccessOpen map

The Wapsi River Environmental Center access is across from Sherman, more than 200 yards downhill from parking, and DNR says it is only for facility renters.

Pulling access map tiles. Usually under 5 seconds.

Access caveats and watch for

Access caveats

  • Allen's Grove is about a quarter mile south of the Y52/956 bridge and has a cement ramp and eddy, but same-day water level and ramp condition still control usability.
  • The Wapsi River Environmental Center access is across from Sherman, more than 200 yards downhill from parking, and DNR says it is only for facility renters.
  • USGS 05421740 is an upstream threshold proxy; use the De Witt gauge as a direct lower-river corroboration and inspect the landings.

Watch for

  • Side channels and river bends where current can sweep boats into dead logs.
  • Large beaches, cabins, private banks, and rural stretches with few easy bailouts.
  • High/rising water that makes eddies, ramps, and wood avoidance more consequential.

Check the data behind today's call.

Use this section when the page shows stale data, limited confidence, or a call you want to verify before driving.

Read quality
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Tomorrow and weekend

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Gauge, thresholds, and timing

These are the live readings and threshold notes behind today's score.

Gauge siteWapsipinicon River near Anamosa, IA
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Target band200 cfs to 2,800 cfs
Low threshold200 cfs
High threshold2,800 cfs
Data confidence behind the rangeLocal route guidance
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Main source behind this scoreCanWePaddle lower Wapsipinicon Anamosa-to-Oxford range
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What to know before you go

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

  • Official route familySherman Park to Allen's Grove to Gambril, 21 mi

    Iowa DNR lists Sherman Park to Allen's Grove Accesses to Gambril Access as a 21-mile lower-Wapsipinicon section.

    Source

  • Intermediate accessAllen's Grove at about 11 mi

    Iowa DNR says Allen's Grove provides a stop at approximately the 11-mile mark and can make a suitable trip for paddlers with at least intermediate experience.

    Source

  • Allen's Grove access supportPublic boat ramp, no camping

    Scott County describes Allen's Grove as a public use area with a boat ramp on the Wapsipinicon River and notes no camping is allowed there.

    Source

  • Current gauge checkAnamosa 1,920 cfs / 7.13 ft; De Witt 2,270 cfs / 8.02 ft

    USGS Water Services returned current Wapsipinicon values at 2026-07-24 07:15 CDT for Anamosa and 07:30 CDT for De Witt during this run.

    Source

  • Threshold model200 to 2,800 cfs

    CanWePaddle supplies the accepted lower-Wapsi Anamosa-to-Oxford model; this downstream split uses it conservatively with mandatory local checks and De Witt corroboration rather than a new invented range.

    Source

Check the source links

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Wapsipinicon River paddling FAQ

What water level is good for paddling Wapsipinicon River?

Paddle Today watches Wapsipinicon River near Anamosa, IA and treats 200 cfs to 2,800 cfs as the target band for this route, with weather and recent trend included in the final score.

Where does this Wapsipinicon River route start and end?

This route starts at Sherman Park boat ramp and ends at Allen's Grove Access, about About 11 mi on the water.

Is this Wapsipinicon River route good for beginners?

This is listed as a moderate route. Expect more planning than an easy float, and use the live score, route notes, and source links before committing.

See something outdated?

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