US Bridges

US 101 over Little Hoquiam R

Fair

Grays Harbor County, Washington · 1.4 N JCT SR 109 · Structure no. 0005808A0000000

Built
1958
67 years old, rebuilt 1984
Condition
Fair
inspected April 2024
Type
Slab
Concrete Continuous
Length
237 ft
5 main spans
Daily traffic
5,552
2023 count
Owner
State
State Highway Agency

About this bridge

US 101 over Little Hoquiam R is a concrete continuous slab carrying US 101 over Little Hoquiam R in Grays Harbor County, Washington. It was built in 1958 and reconstructed in 1984, so it is 67 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 5,552 vehicles a day, roughly 13% of them trucks, projected to reach 5,893 by 2039. The structure is 237 ft (72.2 m) long and 55 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesUS 101
CrossesLittle Hoquiam R
Location1.4 N JCT SR 109
RouteU.S. Route 101
Coordinates46.99398, -123.8948
Functional classUrban Other Principal 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
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length237 ft (72.2 m)
Longest span65 ft (19.8 m)
Deck width55 ft (16.8 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,552 (2023)
Projected traffic5,893 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemYes

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$6.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 101 over Little Hoquiam R built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1984.

What condition is US 101 over Little Hoquiam R 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 April 2024.

How much traffic does US 101 over Little Hoquiam R carry?

About 5,552 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is US 101 over Little Hoquiam R?

The structure is 237 ft (72.2 m) long with a longest span of 65 ft (19.8 m) and a deck 55 ft wide.

Who owns US 101 over Little Hoquiam R?

It is owned by the State Highway Agency.