US Bridges

East Humptulips RD over Brittain Creek

Good

Grays Harbor County, Washington · 02.8 E JCT SR101 · Structure no. 085815000000000

Built
1990
35 years old
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
2 main spans
Daily traffic
41
2023 count
Owner
County
County Highway Agency

About this bridge

East Humptulips RD over Brittain Creek is a prestressed concrete stringer/multi-beam or girder carrying East Humptulips RD over Brittain Creek in Grays Harbor County, Washington. It was built in 1990, so it is 35 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 2043. The structure is 174 ft (53 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesEast Humptulips RD
CrossesBrittain Creek
Location02.8 E JCT SR101
RouteCounty Highway 49680
Coordinates47.23158, -123.92292
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 protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length174 ft (53 m)
Longest span84 ft (25.6 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2023)
Projected traffic50 by 2043
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$6.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was East Humptulips RD over Brittain Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is East Humptulips RD over Brittain 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 Brittain Creek carry?

About 41 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is East Humptulips RD over Brittain Creek?

The structure is 174 ft (53 m) long with a longest span of 84 ft (25.6 m) and a deck 31 ft wide.

Who owns East Humptulips RD over Brittain Creek?

It is owned by the County Highway Agency.