US Bridges

East Humptulips RD over Elwood Creek

Good

Grays Harbor County, Washington · 03.3 E JCT SR101 · Structure no. 081135000000000

Built
1983
42 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
119 ft
4 main spans
Daily traffic
41
2021 count
Owner
County
County Highway Agency

About this bridge

East Humptulips RD over Elwood Creek is a prestressed concrete slab carrying East Humptulips RD over Elwood Creek in Grays Harbor County, Washington. It was built in 1983, so it is 42 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 41 vehicles a day, roughly 20% of them trucks, projected to reach 50 by 2041. The structure is 119 ft (36.2 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesEast Humptulips RD
CrossesElwood Creek
Location03.3 E JCT SR101
RouteCounty Highway 49680
Coordinates47.23706, -123.91576
Functional classRural Local

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 inspectionDecember 2023
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 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 rating33.2 US tons
Inventory rating24.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans4
Design loadHS 20
Structure length119 ft (36.2 m)
Longest span31 ft (9.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2021)
Projected traffic50 by 2041
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$4.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Humptulips RD over Elwood Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is East Humptulips RD over Elwood 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 December 2023.

How much traffic does East Humptulips RD over Elwood Creek carry?

About 41 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is East Humptulips RD over Elwood Creek?

The structure is 119 ft (36.2 m) long with a longest span of 31 ft (9.5 m) and a deck 24 ft wide.

Who owns East Humptulips RD over Elwood Creek?

It is owned by the County Highway Agency.