US Bridges

Upper Hoh Road over Spruce Creek

Good

Jefferson County, Washington · Upper Hoh RD Milepost 9.7 · Structure no. 088535000000000

Built
2012
13 years old
Condition
Good
inspected May 2024
Type
Frame
Concrete
Length
24 ft
1 main span
Daily traffic
877
2020 count
Owner
County
County Highway Agency

About this bridge

Upper Hoh Road over Spruce Creek is a concrete frame carrying Upper Hoh Road over Spruce Creek in Jefferson County, Washington. It was built in 2012, so it is 13 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 877 vehicles a day, roughly 5% of them trucks, projected to reach 500 by 2040. The structure is 24 ft (7.2 m) long and 40 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesUpper Hoh Road
CrossesSpruce Creek
LocationUpper Hoh RD Milepost 9.7
RouteCounty Highway 91420
CountyJefferson County
StateWashington
Coordinates47.81008, -124.08059
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.1 US tons
Inventory rating41.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length24 ft (7.2 m)
Longest span22 ft (6.7 m)
Deck width40 ft (12.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic877 (2020)
Projected traffic500 by 2040
Trucks5%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Upper Hoh Road over Spruce Creek built?

It was built in 2012, making it 13 years old in 2025.

What condition is Upper Hoh Road over Spruce 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 May 2024.

How much traffic does Upper Hoh Road over Spruce Creek carry?

About 877 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Upper Hoh Road over Spruce Creek?

The structure is 24 ft (7.2 m) long with a longest span of 22 ft (6.7 m) and a deck 40 ft wide.

Who owns Upper Hoh Road over Spruce Creek?

It is owned by the County Highway Agency.