US Bridges

LANGE/2410 over Palouse River

Good

Whitman County, Washington · 1.56 MI N SR 272 · Structure no. 086286000000000

Built
1997
28 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
142 ft
1 main span
Daily traffic
44
2021 count
Owner
County
County Highway Agency

About this bridge

LANGE/2410 over Palouse River is a prestressed concrete tee beam carrying LANGE/2410 over Palouse River in Whitman County, Washington. It was built in 1997, so it is 28 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 44 vehicles a day, roughly 40% of them trucks, projected to reach 49 by 2044. The structure is 142 ft (43.3 m) long and 29 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesLANGE/2410
CrossesPalouse River
Location1.56 MI N SR 272
RouteCounty Highway 24100
Coordinates46.9549, -117.18775
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 inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length142 ft (43.3 m)
Longest span139 ft (42.5 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic44 (2021)
Projected traffic49 by 2044
Trucks40%
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 statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$5.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was LANGE/2410 over Palouse River built?

It was built in 1997, making it 28 years old in 2025.

What condition is LANGE/2410 over Palouse River 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 November 2023.

How much traffic does LANGE/2410 over Palouse River carry?

About 44 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is LANGE/2410 over Palouse River?

The structure is 142 ft (43.3 m) long with a longest span of 139 ft (42.5 m) and a deck 29 ft wide.

Who owns LANGE/2410 over Palouse River?

It is owned by the County Highway Agency.