US Bridges

FM over Wapsinonoc Creek

Poor

Muscatine County, Iowa · 078041407 · Structure no. 000000000258381

Built
1981
44 years old
Condition
Poor
inspected September 2023
Type
Slab
Concrete Continuous
Length
128 ft
3 main spans
Daily traffic
1,510
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Wapsinonoc Creek is a concrete continuous slab carrying FM over Wapsinonoc Creek in Muscatine County, Iowa. It was built in 1981, so it is 44 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 1,510 vehicles a day, roughly 8% of them trucks, projected to reach 1,510 by 2043. The structure is 128 ft (39 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesWapsinonoc Creek
Location078041407
RouteCounty Highway 0
StateIowa
Coordinates41.5678, -91.27789
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating56 US tons
Inventory rating32.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length128 ft (39 m)
Longest span49 ft (14.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,510 (2022)
Projected traffic1,510 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$281,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Wapsinonoc Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is FM over Wapsinonoc Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2023.

How much traffic does FM over Wapsinonoc Creek carry?

About 1,510 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is FM over Wapsinonoc Creek?

The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.

Who owns FM over Wapsinonoc Creek?

It is owned by the County Highway Agency.