US Bridges

Sherman Valley RD over Waddell Creek

Good

Thurston County, Washington · 0.75 M N of Waddell CR RD · Structure no. 082176000000000

Built
1982
43 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
352
2020 count
Owner
County
County Highway Agency

About this bridge

Sherman Valley RD over Waddell Creek is a prestressed concrete stringer/multi-beam or girder carrying Sherman Valley RD over Waddell Creek in Thurston 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 352 vehicles a day, roughly 15% of them trucks, projected to reach 566 by 2042. The structure is 70 ft (21.3 m) long and 28 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesSherman Valley RD
CrossesWaddell Creek
Location0.75 M N of Waddell CR RD
RouteCounty Highway 14590
Coordinates46.95544, -123.07792
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating70 US tons
Inventory rating42 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span68 ft (20.7 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic352 (2020)
Projected traffic566 by 2042
Trucks15%
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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$931,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Sherman Valley RD over Waddell Creek built?

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

What condition is Sherman Valley RD over Waddell 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 2023.

How much traffic does Sherman Valley RD over Waddell Creek carry?

About 352 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Sherman Valley RD over Waddell Creek?

The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 28 ft wide.

Who owns Sherman Valley RD over Waddell Creek?

It is owned by the County Highway Agency.