US Bridges

Ia 904 over BNSF RR

Good

Jefferson County, Iowa · 072103000 · Structure no. 000000000031301

Built
2011
14 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
284 ft
3 main spans
Daily traffic
460
2022 count
Owner
County
County Highway Agency

About this bridge

Ia 904 over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Ia 904 over BNSF RR in Jefferson County, Iowa. It was built in 2011, so it is 14 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 460 vehicles a day, roughly 25% of them trucks, projected to reach 460 by 2044. The structure is 284 ft (86.6 m) long and 35 ft wide. If it were closed, the detour would be 24.2 mi (39 km).

Location

Open in Google Maps
CarriesIa 904
CrossesBNSF RR
Location072103000
RouteCounty Highway 0
CountyJefferson County
StateIowa
Coordinates41.00853, -92.04772
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating48.6 US tons
Inventory rating36 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length284 ft (86.6 m)
Longest span112 ft (34.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic460 (2022)
Projected traffic460 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed24.2 mi (39 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 904 over BNSF RR built?

It was built in 2011, making it 14 years old in 2025.

What condition is Ia 904 over BNSF RR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in February 2024.

How much traffic does Ia 904 over BNSF RR carry?

About 460 vehicles per day (2022 count), of which roughly 25% are trucks.

How long is Ia 904 over BNSF RR?

The structure is 284 ft (86.6 m) long with a longest span of 112 ft (34.1 m) and a deck 35 ft wide.

Who owns Ia 904 over BNSF RR?

It is owned by the County Highway Agency.