US Bridges

SR 112 over Susie Creek

Good

Clallam County, Washington · 22.9 E JCT SR 113 · Structure no. 0014897A0000000

Built
1996
29 years old
Condition
Good
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
374 ft
3 main spans
Daily traffic
841
2023 count
Owner
State
State Highway Agency

About this bridge

SR 112 over Susie Creek is a prestressed concrete continuous stringer/multi-beam or girder carrying SR 112 over Susie Creek in Clallam County, Washington. It was built in 1996, so it is 29 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 841 vehicles a day, roughly 14% of them trucks, projected to reach 1,069 by 2039. The structure is 374 ft (114 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 112
CrossesSusie Creek
Location22.9 E JCT SR 113
RouteState Highway 112
Coordinates48.14697, -123.83956
Functional classRural Major 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length374 ft (114 m)
Longest span118 ft (36 m)
Deck width34 ft (10.5 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic841 (2023)
Projected traffic1,069 by 2039
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 112 over Susie Creek built?

It was built in 1996, making it 29 years old in 2025.

What condition is SR 112 over Susie 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 March 2023.

How much traffic does SR 112 over Susie Creek carry?

About 841 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 112 over Susie Creek?

The structure is 374 ft (114 m) long with a longest span of 118 ft (36 m) and a deck 34 ft wide.

Who owns SR 112 over Susie Creek?

It is owned by the State Highway Agency.