US Bridges

FM over Over BNSF RR

Fair

Jefferson County, Iowa · 072102704 · Structure no. 000000000362325

Built
1981
44 years old
Condition
Fair
inspected March 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
214 ft
3 main spans
Daily traffic
1,310
2022 count
Owner
County
County Highway Agency

About this bridge

FM over Over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying FM over Over BNSF RR in Jefferson County, Iowa. It was built in 1981, so it is 44 years old, younger 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 1,310 vehicles a day, roughly 20% of them trucks, projected to reach 1,310 by 2043. The structure is 214 ft (65.2 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFM
CrossesOver BNSF RR
Location072102704
RouteCounty Highway 0
CountyJefferson County
StateIowa
Coordinates41.0142, -92.00444
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length214 ft (65.2 m)
Longest span73 ft (22.3 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,310 (2022)
Projected traffic1,310 by 2043
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM over Over BNSF RR built?

It was built in 1981, making it 44 years old in 2025.

What condition is FM over Over BNSF RR 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 2021.

How much traffic does FM over Over BNSF RR carry?

About 1,310 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is FM over Over BNSF RR?

The structure is 214 ft (65.2 m) long with a longest span of 73 ft (22.3 m) and a deck 33 ft wide.

Who owns FM over Over BNSF RR?

It is owned by the County Highway Agency.