US Bridges

ALTERGOTT/2420 over Cedar Creek

Good

Whitman County, Washington · 02.48 NE SR 272 · Structure no. 086399000000000

Built
1998
27 years old
Condition
Good
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
41
2021 count
Owner
County
County Highway Agency

About this bridge

ALTERGOTT/2420 over Cedar Creek is a prestressed concrete tee beam carrying ALTERGOTT/2420 over Cedar Creek in Whitman County, Washington. It was built in 1998, so it is 27 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 41 vehicles a day, roughly 25% of them trucks, projected to reach 42 by 2044. The structure is 70 ft (21.3 m) long and 29 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

CarriesALTERGOTT/2420
CrossesCedar Creek
Location02.48 NE SR 272
RouteCounty Highway 24200
Coordinates46.95913, -117.11517
Functional classRural Minor 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 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 alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating32.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length70 ft (21.3 m)
Longest span68 ft (20.7 m)
Deck width29 ft (8.9 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic41 (2021)
Projected traffic42 by 2044
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was ALTERGOTT/2420 over Cedar Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is ALTERGOTT/2420 over Cedar 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 November 2023.

How much traffic does ALTERGOTT/2420 over Cedar Creek carry?

About 41 vehicles per day (2021 count), of which roughly 25% are trucks.

How long is ALTERGOTT/2420 over Cedar Creek?

The structure is 70 ft (21.3 m) long with a longest span of 68 ft (20.7 m) and a deck 29 ft wide.

Who owns ALTERGOTT/2420 over Cedar Creek?

It is owned by the County Highway Agency.