US Bridges

Bradshaw Road over South Fork Rock Creek

Good

Spokane County, Washington · 4.5 Mi. E Fairfield · Structure no. 086050000000000

Built
1993
32 years old
Condition
Good
inspected July 2024
Type
Tee Beam
Prestressed Concrete
Length
88 ft
1 main span
Daily traffic
140
2020 count
Owner
County
County Highway Agency

About this bridge

Bradshaw Road over South Fork Rock Creek is a prestressed concrete tee beam carrying Bradshaw Road over South Fork Rock Creek in Spokane County, Washington. It was built in 1993, so it is 32 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 140 vehicles a day, roughly 43% of them trucks, projected to reach 201 by 2042. The structure is 88 ft (26.8 m) long and 31 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesBradshaw Road
CrossesSouth Fork Rock Creek
Location4.5 Mi. E Fairfield
RouteCounty Highway 312
Coordinates47.39502, -117.07977
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating20.7 US tons
Inventory rating16.1 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span84 ft (25.6 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140 (2020)
Projected traffic201 by 2042
Trucks43%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Bradshaw Road over South Fork Rock Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Bradshaw Road over South Fork Rock Creek 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 Bradshaw Road over South Fork Rock Creek carry?

About 140 vehicles per day (2020 count), of which roughly 43% are trucks.

How long is Bradshaw Road over South Fork Rock Creek?

The structure is 88 ft (26.8 m) long with a longest span of 84 ft (25.6 m) and a deck 31 ft wide.

Who owns Bradshaw Road over South Fork Rock Creek?

It is owned by the County Highway Agency.