US Bridges

NHM7683;GOWEN RD over Union Pacific RR

Good

Ada County, Idaho · In Boise · Structure no. 000000000021726

Built
2022
3 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
145 ft
1 main span
Daily traffic
6,700
2023 count
Owner
County
County Highway Agency

About this bridge

NHM7683;GOWEN RD over Union Pacific RR is a prestressed concrete stringer/multi-beam or girder carrying NHM7683;GOWEN RD over Union Pacific RR in Ada County, Idaho. It was built in 2022, so it is 3 years old, younger than the Idaho average of 45.3 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 6,700 vehicles a day, roughly 11% of them trucks, projected to reach 10,050 by 2041. The structure is 145 ft (44.3 m) long and 78 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesNHM7683;GOWEN RD
CrossesUnion Pacific RR
LocationIn Boise
RouteCounty Highway 7683
CountyAda County
StateIdaho
Coordinates43.54324, -116.16776
Functional classUrban Other Principal Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
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 rating75.4 US tons
Inventory rating41.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length145 ft (44.3 m)
Longest span142 ft (43.3 m)
Deck width78 ft (23.8 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic6,700 (2023)
Projected traffic10,050 by 2041
Trucks11%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was NHM7683;GOWEN RD over Union Pacific RR built?

It was built in 2022, making it 3 years old in 2025.

What condition is NHM7683;GOWEN RD over Union Pacific 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 July 2024.

How much traffic does NHM7683;GOWEN RD over Union Pacific RR carry?

About 6,700 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is NHM7683;GOWEN RD over Union Pacific RR?

The structure is 145 ft (44.3 m) long with a longest span of 142 ft (43.3 m) and a deck 78 ft wide.

Who owns NHM7683;GOWEN RD over Union Pacific RR?

It is owned by the County Highway Agency.