US Bridges

SR 105 over Charley CR

Fair

Grays Harbor County, Washington · 15.6 N JCT SR 105 SP · Structure no. 0011779A0000000

Built
1980
45 years old
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete Continuous
Length
120 ft
4 main spans
Daily traffic
6,697
2023 count
Owner
State
State Highway Agency

About this bridge

SR 105 over Charley CR is a prestressed concrete continuous slab carrying SR 105 over Charley CR in Grays Harbor County, Washington. It was built in 1980, so it is 45 years old, younger 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 6,697 vehicles a day, roughly 7% of them trucks, projected to reach 8,178 by 2039. The structure is 120 ft (36.6 m) long and 45 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

CarriesSR 105
CrossesCharley CR
Location15.6 N JCT SR 105 SP
RouteState Highway 105
Coordinates46.94731, -123.83853
Functional classRural Minor Arterial

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckOther
Main spans4
Design loadHS 20 + Mod
Structure length120 ft (36.6 m)
Longest span30 ft (9.1 m)
Deck width45 ft (13.7 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,697 (2023)
Projected traffic8,178 by 2039
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed70.8 mi (114 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$2.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 105 over Charley CR built?

It was built in 1980, making it 45 years old in 2025.

What condition is SR 105 over Charley CR 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 105 over Charley CR carry?

About 6,697 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is SR 105 over Charley CR?

The structure is 120 ft (36.6 m) long with a longest span of 30 ft (9.1 m) and a deck 45 ft wide.

Who owns SR 105 over Charley CR?

It is owned by the State Highway Agency.