US Bridges

FM over Grays Creek

Good

Monroe County, Iowa · 073160703 · Structure no. 000000000253201

Built
1989
36 years old
Condition
Good
inspected December 2022
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
45
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Grays Creek is a concrete continuous slab carrying FM over Grays Creek in Monroe County, Iowa. It was built in 1989, so it is 36 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 45 vehicles a day, roughly 31% of them trucks, projected to reach 45 by 2043. The structure is 116 ft (35.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesGrays Creek
Location073160703
RouteCounty Highway 0
StateIowa
Coordinates41.14735, -92.73966
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating69.1 US tons
Inventory rating42.7 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span44 ft (13.4 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45 (2022)
Projected traffic45 by 2043
Trucks31%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Grays Creek built?

It was built in 1989, making it 36 years old in 2025.

What condition is FM over Grays Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2022.

How much traffic does FM over Grays Creek carry?

About 45 vehicles per day (2022 count), of which roughly 31% are trucks.

How long is FM over Grays Creek?

The structure is 116 ft (35.4 m) long with a longest span of 44 ft (13.4 m) and a deck 33 ft wide.

Who owns FM over Grays Creek?

It is owned by the County Highway Agency.