US Bridges

FM over Mud Creek

PoorPosted for load

Pottawattamie County, Iowa · 074413602 · Structure no. 000000000284631

Built
1976
49 years old
Condition
Poor
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
20
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Mud Creek is a steel stringer/multi-beam or girder carrying FM over Mud Creek in Pottawattamie County, Iowa. It was built in 1976, so it is 49 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, projected to reach 20 by 2044. The structure is 80 ft (24.4 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesMud Creek
Location074413602
RouteCounty Highway 0
StateIowa
Coordinates41.17171, -95.51818
Functional classRural Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, 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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.5 US tons
Inventory rating16.2 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1 (+1 approach)
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span58 ft (17.7 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2022)
Projected traffic20 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Mud Creek built?

It was built in 1976, making it 49 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 April 2024.

How much traffic does FM over Mud Creek carry?

About 20 vehicles per day (2022 count).

How long is FM over Mud Creek?

The structure is 80 ft (24.4 m) long with a longest span of 58 ft (17.7 m) and a deck 21 ft wide.

Who owns FM over Mud Creek?

It is owned by the County Highway Agency.