US Bridges

S 45 over Over UP RR

Fair

Marion County, Iowa · 075211004 · Structure no. 000000000035291

Built
1979
46 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
295 ft
3 main spans
Daily traffic
1,810
2022 count
Owner
County
County Highway Agency

About this bridge

S 45 over Over UP RR is a prestressed concrete stringer/multi-beam or girder carrying S 45 over Over UP RR in Marion County, Iowa. It was built in 1979, so it is 46 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 1,810 vehicles a day, roughly 7% of them trucks, projected to reach 1,810 by 2043. The structure is 295 ft (89.9 m) long and 39 ft wide. If it were closed, the detour would be 13 mi (21 km).

Location

Open in Google Maps
CarriesS 45
CrossesOver UP RR
Location075211004
RouteCounty Highway 0
CountyMarion County
StateIowa
Coordinates41.31995, -93.26177
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating75.8 US tons
Inventory rating45.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length295 ft (89.9 m)
Longest span97 ft (29.6 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,810 (2022)
Projected traffic1,810 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed13 mi (21 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$25,000 (2023 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was S 45 over Over UP RR built?

It was built in 1979, making it 46 years old in 2025.

What condition is S 45 over Over UP 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 December 2023.

How much traffic does S 45 over Over UP RR carry?

About 1,810 vehicles per day (2022 count), of which roughly 7% are trucks.

How long is S 45 over Over UP RR?

The structure is 295 ft (89.9 m) long with a longest span of 97 ft (29.6 m) and a deck 39 ft wide.

Who owns S 45 over Over UP RR?

It is owned by the County Highway Agency.