US Bridges

FM over Stream

Fair

Keokuk County, Iowa · 074130603 · Structure no. 000000000210110

Built
1955
70 years old, rebuilt 2015
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Stream is a steel stringer/multi-beam or girder carrying FM over Stream in Keokuk County, Iowa. It was built in 1955 and reconstructed in 2015, so it is 70 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 35 vehicles a day, projected to reach 35 by 2044. The structure is 51 ft (15.5 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFM
CrossesStream
Location074130603
RouteCounty Highway 0
CountyKeokuk County
StateIowa
Coordinates41.2499, -92.39842
Functional classRural Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.8 US tons
Inventory rating28.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length51 ft (15.5 m)
Longest span47 ft (14.3 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2022)
Projected traffic35 by 2044
Trucks0%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$566,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FM over Stream built?

It was built in 1955, making it 70 years old in 2025. It was reconstructed in 2015.

What condition is FM over Stream 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 March 2024.

How much traffic does FM over Stream carry?

About 35 vehicles per day (2022 count).

How long is FM over Stream?

The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 20 ft wide.

Who owns FM over Stream?

It is owned by the County Highway Agency.