US Bridges

SR 141 over Rattlesnake Creek

Good

Klickitat County, Washington · 3.9 N JCT SR 141 Spur · Structure no. 0003237A0000000

Built
1947
78 years old
Condition
Good
inspected March 2023
Type
Tee Beam
Concrete Continuous
Length
93 ft
3 main spans
Daily traffic
3,793
2023 count
Owner
State
State Highway Agency

About this bridge

SR 141 over Rattlesnake Creek is a concrete continuous tee beam carrying SR 141 over Rattlesnake Creek in Klickitat County, Washington. It was built in 1947, so it is 78 years old, older 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 3,793 vehicles a day, roughly 10% of them trucks, projected to reach 4,406 by 2039. The structure is 93 ft (28.3 m) long and 35 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

CarriesSR 141
CrossesRattlesnake Creek
Location3.9 N JCT SR 141 Spur
RouteState Highway 141
Coordinates45.79693, -121.48522
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 15
Structure length93 ft (28.3 m)
Longest span56 ft (17.1 m)
Deck width35 ft (10.6 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,793 (2023)
Projected traffic4,406 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed21.7 mi (35 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 141 over Rattlesnake Creek built?

It was built in 1947, making it 78 years old in 2025.

What condition is SR 141 over Rattlesnake 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 March 2023.

How much traffic does SR 141 over Rattlesnake Creek carry?

About 3,793 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 141 over Rattlesnake Creek?

The structure is 93 ft (28.3 m) long with a longest span of 56 ft (17.1 m) and a deck 35 ft wide.

Who owns SR 141 over Rattlesnake Creek?

It is owned by the State Highway Agency.