US Bridges

FM over Johns Creek

Fair

Plymouth County, Iowa · 092443601 · Structure no. 000000000274541

Built
1976
49 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete Continuous
Length
125 ft
3 main spans
Daily traffic
1,157
2021 count
Owner
County
County Highway Agency

About this bridge

FM over Johns Creek is a concrete continuous slab carrying FM over Johns Creek in Plymouth 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 fair condition with a lowest component rating of 6 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 1,157 vehicles a day, roughly 14% of them trucks, projected to reach 1,157 by 2044. The structure is 125 ft (38.1 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFM
CrossesJohns Creek
Location092443601
RouteCounty Highway 0
StateIowa
Coordinates42.75004, -95.98466
Functional classRural Major 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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.4 US tons
Inventory rating33.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span49 ft (14.9 m)
Deck width31 ft (9.4 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,157 (2021)
Projected traffic1,157 by 2044
Trucks14%
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 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 Johns Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is FM over Johns 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 May 2023.

How much traffic does FM over Johns Creek carry?

About 1,157 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is FM over Johns Creek?

The structure is 125 ft (38.1 m) long with a longest span of 49 ft (14.9 m) and a deck 31 ft wide.

Who owns FM over Johns Creek?

It is owned by the County Highway Agency.