US Bridges

Blenz Road 45130 over Sinking Creek

PoorPosted for load

Lincoln County, Washington · 5.07 SE FAS T220 · Structure no. 081582000000000

Built
1936
89 years old
Condition
Poor
inspected November 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
30 ft
1 main span
Daily traffic
22
2020 count
Owner
County
County Highway Agency

About this bridge

Blenz Road 45130 over Sinking Creek is a steel stringer/multi-beam or girder carrying Blenz Road 45130 over Sinking Creek in Lincoln County, Washington. It was built in 1936, so it is 89 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 22 vehicles a day, roughly 25% of them trucks, projected to reach 52 by 2040. The structure is 30 ft (9.1 m) long and 24 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesBlenz Road 45130
CrossesSinking Creek
Location5.07 SE FAS T220
RouteCounty Highway 45130
Coordinates47.66433, -118.60431
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating10.7 US tons
Inventory rating8.6 US tons

Structure

MaterialSteel
DeckCorrugated steel
Main spans1
Design loadH 10
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2020)
Projected traffic52 by 2040
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Blenz Road 45130 over Sinking Creek built?

It was built in 1936, making it 89 years old in 2025.

What condition is Blenz Road 45130 over Sinking Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Blenz Road 45130 over Sinking Creek carry?

About 22 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is Blenz Road 45130 over Sinking Creek?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 24 ft wide.

Who owns Blenz Road 45130 over Sinking Creek?

It is owned by the County Highway Agency.