US Bridges

G12 Desota Ave over Boyer River

Good

Pottawattamie County, Iowa · 077440407 · Structure no. 000000000290961

Built
2019
6 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
331 ft
3 main spans
Daily traffic
409
2022 count
Owner
County
County Highway Agency

About this bridge

G12 Desota Ave over Boyer River is a steel continuous stringer/multi-beam or girder carrying G12 Desota Ave over Boyer River in Pottawattamie County, Iowa. It was built in 2019, so it is 6 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 409 vehicles a day, projected to reach 409 by 2043. The structure is 331 ft (100.9 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesG12 Desota Ave
CrossesBoyer River
Location077440407
RouteCounty Highway 0
CountyPottawattamie County
StateIowa
Coordinates41.49933, -95.90853
Functional classRural Minor 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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable 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
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length331 ft (100.9 m)
Longest span148 ft (45.1 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic409 (2022)
Projected traffic409 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was G12 Desota Ave over Boyer River built?

It was built in 2019, making it 6 years old in 2025.

What condition is G12 Desota Ave over Boyer River 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 April 2024.

How much traffic does G12 Desota Ave over Boyer River carry?

About 409 vehicles per day (2022 count).

How long is G12 Desota Ave over Boyer River?

The structure is 331 ft (100.9 m) long with a longest span of 148 ft (45.1 m) and a deck 33 ft wide.

Who owns G12 Desota Ave over Boyer River?

It is owned by the County Highway Agency.