US Bridges

Wenzel Slough Road over Newman Creek

Fair

Grays Harbor County, Washington · 04.1 W JCT 9641 · Structure no. 080334000000000

Built
1971
54 years old
Condition
Fair
inspected January 2024
Type
Slab
Prestressed Concrete
Length
85 ft
3 main spans
Daily traffic
102
2024 count
Owner
County
County Highway Agency

About this bridge

Wenzel Slough Road over Newman Creek is a prestressed concrete slab carrying Wenzel Slough Road over Newman Creek in Grays Harbor County, Washington. It was built in 1971, so it is 54 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 5 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 102 vehicles a day, roughly 3% of them trucks, projected to reach 152 by 2040. The structure is 85 ft (25.8 m) long and 24 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesWenzel Slough Road
CrossesNewman Creek
Location04.1 W JCT 9641
RouteCounty Highway 64370
Coordinates46.98433, -123.46925
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating44 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length85 ft (25.8 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic102 (2024)
Projected traffic152 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 relocation of road
Estimated improvement cost$3.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Wenzel Slough Road over Newman Creek built?

It was built in 1971, making it 54 years old in 2025.

What condition is Wenzel Slough Road over Newman Creek 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 January 2024.

How much traffic does Wenzel Slough Road over Newman Creek carry?

About 102 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is Wenzel Slough Road over Newman Creek?

The structure is 85 ft (25.8 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns Wenzel Slough Road over Newman Creek?

It is owned by the County Highway Agency.