US Bridges

Main ST over BNSF RR

Fair

Mills County, Iowa · 000000000 · Structure no. 000000000036030

Built
1940
85 years old, rebuilt 1998
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
234 ft
4 main spans
Daily traffic
2,462
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Main ST over BNSF RR is a steel continuous stringer/multi-beam or girder carrying Main ST over BNSF RR in Mills County, Iowa. It was built in 1940 and reconstructed in 1998, so it is 85 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 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 2,462 vehicles a day, projected to reach 2,462 by 2043. The structure is 234 ft (71.3 m) long and 31 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesMain ST
CrossesBNSF RR
Location000000000
RouteCity Street 0
CountyMills County
StateIowa
Coordinates41.00972, -95.58515
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.5 US tons
Inventory rating31.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length234 ft (71.3 m)
Longest span65 ft (19.8 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,462 (2021)
Projected traffic2,462 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Main ST over BNSF RR built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1998.

What condition is Main ST 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 2023.

How much traffic does Main ST over BNSF RR carry?

About 2,462 vehicles per day (2021 count).

How long is Main ST over BNSF RR?

The structure is 234 ft (71.3 m) long with a longest span of 65 ft (19.8 m) and a deck 31 ft wide.

Who owns Main ST over BNSF RR?

It is owned by the City or Municipal Highway Agency.