US Bridges

Irr-Fm over Over UP RR

Good

Tama County, Iowa · 083152909 · Structure no. 000000000318210

Built
1993
32 years old
Condition
Good
inspected September 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
217 ft
3 main spans
Daily traffic
619
2022 count
Owner
County
County Highway Agency

About this bridge

Irr-Fm over Over UP RR is a prestressed concrete stringer/multi-beam or girder carrying Irr-Fm over Over UP RR in Tama County, Iowa. It was built in 1993, so it is 32 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 619 vehicles a day, roughly 13% of them trucks, projected to reach 619 by 2043. The structure is 217 ft (66.1 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesIrr-Fm
CrossesOver UP RR
Location083152909
RouteCounty Highway 0
CountyTama County
StateIowa
Coordinates41.96685, -92.6119
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2022
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating98.2 US tons
Inventory rating43.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length217 ft (66.1 m)
Longest span77 ft (23.5 m)
Deck width33 ft (10.1 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic619 (2022)
Projected traffic619 by 2043
Trucks13%
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 Irr-Fm over Over UP RR built?

It was built in 1993, making it 32 years old in 2025.

What condition is Irr-Fm over Over UP 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 September 2022.

How much traffic does Irr-Fm over Over UP RR carry?

About 619 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Irr-Fm over Over UP RR?

The structure is 217 ft (66.1 m) long with a longest span of 77 ft (23.5 m) and a deck 33 ft wide.

Who owns Irr-Fm over Over UP RR?

It is owned by the County Highway Agency.