US Bridges

SR 105 over Indian Creek

Fair

Grays Harbor County, Washington · 12.6 N JCT SR 105 SP · Structure no. 0002984B0000000

Built
1945
80 years old
Condition
Fair
inspected June 2024
Type
Slab
Wood or Timber
Length
87 ft
5 main spans
Daily traffic
6,124
2023 count
Owner
State
State Highway Agency

About this bridge

SR 105 over Indian Creek is a wood or timber slab carrying SR 105 over Indian Creek in Grays Harbor County, Washington. It was built in 1945, so it is 80 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 6,124 vehicles a day, roughly 6% of them trucks, projected to reach 7,343 by 2039. The structure is 87 ft (26.5 m) long and 31 ft wide. If it were closed, the detour would be 70.8 mi (114 km).

Location

Open in Google Maps
CarriesSR 105
CrossesIndian Creek
Location12.6 N JCT SR 105 SP
RouteState Highway 105
CountyGrays Harbor County
StateWashington
Coordinates46.93578, -123.8975
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 inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans5
Design loadH 15
Structure length87 ft (26.5 m)
Longest span17 ft (5.2 m)
Deck width31 ft (9.3 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,124 (2023)
Projected traffic7,343 by 2039
Trucks6%
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$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 105 over Indian Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is SR 105 over Indian 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 June 2024.

How much traffic does SR 105 over Indian Creek carry?

About 6,124 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is SR 105 over Indian Creek?

The structure is 87 ft (26.5 m) long with a longest span of 17 ft (5.2 m) and a deck 31 ft wide.

Who owns SR 105 over Indian Creek?

It is owned by the State Highway Agency.