US Bridges

Addy-Gifford Road over Colville River

Fair

Stevens County, Washington · 00.41 NW JCT SR 395 · Structure no. 081656000000000

Built
1956
69 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete Continuous
Length
90 ft
3 main spans
Daily traffic
1,151
2024 count
Owner
County
County Highway Agency

About this bridge

Addy-Gifford Road over Colville River is a concrete continuous slab carrying Addy-Gifford Road over Colville River in Stevens County, Washington. It was built in 1956, so it is 69 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,151 vehicles a day, roughly 5% of them trucks, projected to reach 1,000 by 2037. The structure is 90 ft (27.4 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesAddy-Gifford Road
CrossesColville River
Location00.41 NW JCT SR 395
RouteCounty Highway 93000
CountyStevens County
StateWashington
Coordinates48.35586, -117.84013
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length90 ft (27.4 m)
Longest span38 ft (11.6 m)
Deck width31 ft (9.3 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,151 (2024)
Projected traffic1,000 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Addy-Gifford Road over Colville River built?

It was built in 1956, making it 69 years old in 2025.

What condition is Addy-Gifford Road over Colville River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Addy-Gifford Road over Colville River carry?

About 1,151 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is Addy-Gifford Road over Colville River?

The structure is 90 ft (27.4 m) long with a longest span of 38 ft (11.6 m) and a deck 31 ft wide.

Who owns Addy-Gifford Road over Colville River?

It is owned by the County Highway Agency.