US Bridges

FM over Cedar River

Fair

Floyd County, Iowa · 095153407 · Structure no. 000000000154480

Built
1980
45 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
406 ft
5 main spans
Daily traffic
167
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Cedar River is a prestressed concrete stringer/multi-beam or girder carrying FM over Cedar River in Floyd County, Iowa. It was built in 1980, so it is 45 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 167 vehicles a day, projected to reach 167 by 2044. The structure is 406 ft (123.7 m) long and 33 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesFM
CrossesCedar River
Location095153407
RouteCounty Highway 0
CountyFloyd County
StateIowa
Coordinates43.00896, -92.60346
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating75.6 US tons
Inventory rating27.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length406 ft (123.7 m)
Longest span81 ft (24.7 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic167 (2022)
Projected traffic167 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13 mi (21 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$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Cedar River built?

It was built in 1980, making it 45 years old in 2025.

What condition is FM over Cedar River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does FM over Cedar River carry?

About 167 vehicles per day (2022 count).

How long is FM over Cedar River?

The structure is 406 ft (123.7 m) long with a longest span of 81 ft (24.7 m) and a deck 33 ft wide.

Who owns FM over Cedar River?

It is owned by the County Highway Agency.