US Bridges

FM over Lime Creek

Fair

Benton County, Iowa · 086100403 · Structure no. 000000000073131

Built
1990
35 years old
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
179 ft
3 main spans
Daily traffic
324
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Lime Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Lime Creek in Benton County, Iowa. It was built in 1990, so it is 35 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 324 vehicles a day, roughly 19% of them trucks, projected to reach 324 by 2043. The structure is 179 ft (54.6 m) long and 33 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesFM
CrossesLime Creek
Location086100403
RouteCounty Highway 0
StateIowa
Coordinates42.29749, -92.01816
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating85 US tons
Inventory rating43.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length179 ft (54.6 m)
Longest span65 ft (19.8 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic324 (2022)
Projected traffic324 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Lime Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is FM over Lime Creek 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 April 2023.

How much traffic does FM over Lime Creek carry?

About 324 vehicles per day (2022 count), of which roughly 19% are trucks.

How long is FM over Lime Creek?

The structure is 179 ft (54.6 m) long with a longest span of 65 ft (19.8 m) and a deck 33 ft wide.

Who owns FM over Lime Creek?

It is owned by the County Highway Agency.