US Bridges

Oil City Road over Cassel Creek

Good

Jefferson County, Washington · 3.59 SW JCT SR101 · Structure no. 086599000000000

Built
2000
25 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
155 ft
3 main spans
Daily traffic
109
2016 count
Owner
County
County Highway Agency

About this bridge

Oil City Road over Cassel Creek is a steel stringer/multi-beam or girder carrying Oil City Road over Cassel Creek in Jefferson County, Washington. It was built in 2000, so it is 25 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 109 vehicles a day, roughly 18% of them trucks, projected to reach 200 by 2035. The structure is 155 ft (47.2 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesOil City Road
CrossesCassel Creek
Location3.59 SW JCT SR101
RouteCounty Highway 13430
CountyJefferson County
StateWashington
Coordinates47.77822, -124.30868
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans3
Design loadHS 25 or greater
Structure length155 ft (47.2 m)
Longest span66 ft (20.1 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic109 (2016)
Projected traffic200 by 2035
Trucks18%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$4.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Oil City Road over Cassel Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Oil City Road over Cassel 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 July 2024.

How much traffic does Oil City Road over Cassel Creek carry?

About 109 vehicles per day (2016 count), of which roughly 18% are trucks.

How long is Oil City Road over Cassel Creek?

The structure is 155 ft (47.2 m) long with a longest span of 66 ft (20.1 m) and a deck 18 ft wide.

Who owns Oil City Road over Cassel Creek?

It is owned by the County Highway Agency.