US Bridges

Bigelow Gulch Road over Forker Road

Good

Spokane County, Washington · 3.2 MI E of Argonne RD · Structure no. 089023000000000

Built
2018
7 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
7,019
2019 count
Owner
County
County Highway Agency

About this bridge

Bigelow Gulch Road over Forker Road is a prestressed concrete stringer/multi-beam or girder carrying Bigelow Gulch Road over Forker Road in Spokane County, Washington. It was built in 2018, so it is 7 years old, younger than the Washington average of 49.8 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 7,019 vehicles a day, roughly 13% of them trucks, projected to reach 10,107 by 2041. The structure is 65 ft (19.8 m) long and 80 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesBigelow Gulch Road
CrossesForker Road
Location3.2 MI E of Argonne RD
RouteCounty Highway 263
CountySpokane County
StateWashington
Coordinates47.72171, -117.21456
Functional classRural Minor 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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.4 US tons
Inventory rating58.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length65 ft (19.8 m)
Longest span60 ft (18.3 m)
Deck width80 ft (24.5 m)
Roadway width78 ft (23.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,019 (2019)
Projected traffic10,107 by 2041
Trucks13%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Bigelow Gulch Road over Forker Road built?

It was built in 2018, making it 7 years old in 2025.

What condition is Bigelow Gulch Road over Forker Road 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 September 2023.

How much traffic does Bigelow Gulch Road over Forker Road carry?

About 7,019 vehicles per day (2019 count), of which roughly 13% are trucks.

How long is Bigelow Gulch Road over Forker Road?

The structure is 65 ft (19.8 m) long with a longest span of 60 ft (18.3 m) and a deck 80 ft wide.

Who owns Bigelow Gulch Road over Forker Road?

It is owned by the County Highway Agency.