US Bridges

M37 Boxelder Ave over BNSF RR

Good

Montgomery County, Iowa · 072392804 · Structure no. 000000000255911

Built
2014
11 years old
Condition
Good
inspected May 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
237 ft
3 main spans
Daily traffic
249
2022 count
Owner
County
County Highway Agency

About this bridge

M37 Boxelder Ave over BNSF RR is a prestressed concrete stringer/multi-beam or girder carrying M37 Boxelder Ave over BNSF RR in Montgomery County, Iowa. It was built in 2014, so it is 11 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 249 vehicles a day, projected to reach 249 by 2043. The structure is 237 ft (72.2 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesM37 Boxelder Ave
CrossesBNSF RR
Location072392804
RouteCounty Highway 0
CountyMontgomery County
StateIowa
Coordinates41.01094, -95.33703
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 inspectionMay 2021
Inspection intervalevery 48 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 alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length237 ft (72.2 m)
Longest span92 ft (28 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic249 (2022)
Projected traffic249 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed11.2 mi (18 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 M37 Boxelder Ave over BNSF RR built?

It was built in 2014, making it 11 years old in 2025.

What condition is M37 Boxelder Ave 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 May 2021.

How much traffic does M37 Boxelder Ave over BNSF RR carry?

About 249 vehicles per day (2022 count).

How long is M37 Boxelder Ave over BNSF RR?

The structure is 237 ft (72.2 m) long with a longest span of 92 ft (28 m) and a deck 33 ft wide.

Who owns M37 Boxelder Ave over BNSF RR?

It is owned by the County Highway Agency.