US Bridges

FM over Johns Creek

Fair

Plymouth County, Iowa · 090441201 · Structure no. 000000000270931

Built
1971
54 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete
Length
127 ft
3 main spans
Daily traffic
259
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Johns Creek is a concrete slab carrying FM over Johns Creek in Plymouth County, Iowa. It was built in 1971, so it is 54 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 259 vehicles a day, roughly 25% of them trucks, projected to reach 259 by 2044. The structure is 127 ft (38.7 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFM
CrossesJohns Creek
Location090441201
RouteCounty Highway 0
StateIowa
Coordinates42.63368, -95.99257
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
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 alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating33.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length127 ft (38.7 m)
Longest span49 ft (14.9 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic259 (2022)
Projected traffic259 by 2044
Trucks25%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Johns Creek built?

It was built in 1971, making it 54 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 August 2024.

How much traffic does FM over Johns Creek carry?

About 259 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is FM over Johns Creek?

The structure is 127 ft (38.7 m) long with a longest span of 49 ft (14.9 m) and a deck 30 ft wide.

Who owns FM over Johns Creek?

It is owned by the County Highway Agency.