US Bridges

FM over Mud Creek

Poor

Marshall County, Iowa · 085191903 · Structure no. 000000000244290

Built
1967
58 years old
Condition
Poor
inspected November 2023
Type
Culvert
Concrete Continuous
Length
70 ft
3 main spans
Daily traffic
265
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Mud Creek is a concrete continuous culvert carrying FM over Mud Creek in Marshall County, Iowa. It was built in 1967, so it is 58 years old, older 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 265 vehicles a day, roughly 32% of them trucks, projected to reach 265 by 2043. The structure is 70 ft (21.3 m) long. If it were closed, the detour would be 11.8 mi (19 km).

CarriesFM
CrossesMud Creek
Location085191903
RouteCounty Highway 0
StateIowa
Coordinates42.16553, -93.10321
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 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
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating80.9 US tons
Inventory rating48.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadH 20
Structure length70 ft (21.3 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic265 (2022)
Projected traffic265 by 2043
Trucks32%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$723,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Mud Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is FM over Mud 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 November 2023.

How much traffic does FM over Mud Creek carry?

About 265 vehicles per day (2022 count), of which roughly 32% are trucks.

How long is FM over Mud Creek?

The structure is 70 ft (21.3 m) long with a longest span of 25 ft (7.6 m).

Who owns FM over Mud Creek?

It is owned by the County Highway Agency.