US Bridges

Black Creek Road over Black Creek

Good

Grays Harbor County, Washington · 00.5 NE JCT 9519 · Structure no. 083477000000000

Built
1982
43 years old
Condition
Good
inspected December 2022
Type
Slab
Prestressed Concrete
Length
82 ft
3 main spans
Daily traffic
236
2022 count
Owner
County
County Highway Agency

About this bridge

Black Creek Road over Black Creek is a prestressed concrete slab carrying Black Creek Road over Black Creek in Grays Harbor County, Washington. It was built in 1982, so it is 43 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 236 vehicles a day, roughly 10% of them trucks, projected to reach 288 by 2042. The structure is 82 ft (25 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesBlack Creek Road
CrossesBlack Creek
Location00.5 NE JCT 9519
RouteCounty Highway 58310
Coordinates47.01528, -123.64528
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 protection7 GoodSome minor problems.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length82 ft (25 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic236 (2022)
Projected traffic288 by 2042
Trucks10%
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$3.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Black Creek Road over Black Creek built?

It was built in 1982, making it 43 years old in 2025.

What condition is Black Creek Road over Black 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 2022.

How much traffic does Black Creek Road over Black Creek carry?

About 236 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Black Creek Road over Black Creek?

The structure is 82 ft (25 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Black Creek Road over Black Creek?

It is owned by the County Highway Agency.