US Bridges

FM 50th ST over Beaver Creek

Fair

Howard County, Iowa · 100133601 · Structure no. 000000000183950

Built
1970
55 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
314
2022 count
Owner
County
County Highway Agency

About this bridge

FM 50th ST over Beaver Creek is a concrete continuous slab carrying FM 50th ST over Beaver Creek in Howard County, Iowa. It was built in 1970, so it is 55 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 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 314 vehicles a day, roughly 29% of them trucks, projected to reach 314 by 2044. The structure is 77 ft (23.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM 50th ST
CrossesBeaver Creek
Location100133601
RouteCounty Highway 0
CountyHoward County
StateIowa
Coordinates43.44345, -92.32618
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.4 US tons
Inventory rating34.5 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length77 ft (23.5 m)
Longest span29 ft (8.8 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic314 (2022)
Projected traffic314 by 2044
Trucks29%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 50th ST over Beaver Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is FM 50th ST over Beaver 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 2024.

How much traffic does FM 50th ST over Beaver Creek carry?

About 314 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is FM 50th ST over Beaver Creek?

The structure is 77 ft (23.5 m) long with a longest span of 29 ft (8.8 m) and a deck 32 ft wide.

Who owns FM 50th ST over Beaver Creek?

It is owned by the County Highway Agency.