US Bridges

SR 112 over Salt Creek

Fair

Clallam County, Washington · 31.7 E JCT SR 113 · Structure no. 0004152A0000000

Built
1952
73 years old
Condition
Fair
inspected August 2024
Type
Slab
Concrete Continuous
Length
72 ft
4 main spans
Daily traffic
3,493
2023 count
Owner
State
State Highway Agency

About this bridge

SR 112 over Salt Creek is a concrete continuous slab carrying SR 112 over Salt Creek in Clallam County, Washington. It was built in 1952, so it is 73 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 3,493 vehicles a day, roughly 8% of them trucks, projected to reach 4,442 by 2039. The structure is 72 ft (22 m) long and 32 ft wide. If it were closed, the detour would be 26.7 mi (43 km).

CarriesSR 112
CrossesSalt Creek
Location31.7 E JCT SR 113
RouteState Highway 112
Coordinates48.11891, -123.66341
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating29.7 US tons
Inventory rating22.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length72 ft (22 m)
Longest span17 ft (5.1 m)
Deck width32 ft (9.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,493 (2023)
Projected traffic4,442 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.7 mi (43 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 112 over Salt Creek built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR 112 over Salt Creek 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 August 2024.

How much traffic does SR 112 over Salt Creek carry?

About 3,493 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 112 over Salt Creek?

The structure is 72 ft (22 m) long with a longest span of 17 ft (5.1 m) and a deck 32 ft wide.

Who owns SR 112 over Salt Creek?

It is owned by the State Highway Agency.