US Bridges

FM Am Legion RD over Snyder Creek

Fair

Johnson County, Iowa · 079051703 · Structure no. 000000000203951

Built
1978
47 years old
Condition
Fair
inspected April 2021
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
1,480
2022 count
Owner
County
County Highway Agency

About this bridge

FM Am Legion RD over Snyder Creek is a concrete continuous slab carrying FM Am Legion RD over Snyder Creek in Johnson County, Iowa. It was built in 1978, so it is 47 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 1,480 vehicles a day, projected to reach 1,480 by 2043. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM Am Legion RD
CrossesSnyder Creek
Location079051703
RouteCounty Highway 0
CountyJohnson County
StateIowa
Coordinates41.64204, -91.4516
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 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 rating65.5 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span28 ft (8.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,480 (2022)
Projected traffic1,480 by 2043
Trucks0%
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 Am Legion RD over Snyder Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is FM Am Legion RD over Snyder 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 2021.

How much traffic does FM Am Legion RD over Snyder Creek carry?

About 1,480 vehicles per day (2022 count).

How long is FM Am Legion RD over Snyder Creek?

The structure is 78 ft (23.8 m) long with a longest span of 28 ft (8.5 m) and a deck 32 ft wide.

Who owns FM Am Legion RD over Snyder Creek?

It is owned by the County Highway Agency.