US Bridges

FAS 1196 over Chehalis River

Fair

Lewis County, Washington · .1 W JCT I-5 · Structure no. 085076000000000

Built
1959
66 years old
Condition
Fair
inspected March 2023
Type
Truss - Thru
Steel
Length
304 ft
1 main span
Daily traffic
10,684
2017 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAS 1196 over Chehalis River is a steel truss - thru carrying FAS 1196 over Chehalis River in Lewis County, Washington. It was built in 1959, so it is 66 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 10,684 vehicles a day, roughly 5% of them trucks, projected to reach 13,500 by 2037. The structure is 304 ft (92.7 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesFAS 1196
CrossesChehalis River
Location.1 W JCT I-5
RouteCity Street 2401
CountyLewis County
StateWashington
Coordinates46.71172, -122.97847
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating29 US tons
Inventory rating23 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length304 ft (92.7 m)
Longest span240 ft (73.2 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic10,684 (2017)
Projected traffic13,500 by 2037
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$6.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was FAS 1196 over Chehalis River built?

It was built in 1959, making it 66 years old in 2025.

What condition is FAS 1196 over Chehalis River 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 March 2023.

How much traffic does FAS 1196 over Chehalis River carry?

About 10,684 vehicles per day (2017 count), of which roughly 5% are trucks.

How long is FAS 1196 over Chehalis River?

The structure is 304 ft (92.7 m) long with a longest span of 240 ft (73.2 m) and a deck 32 ft wide.

Who owns FAS 1196 over Chehalis River?

It is owned by the City or Municipal Highway Agency.