US Bridges

GLENWOOD/2450 over Dry Creek

Fair

Whitman County, Washington · 0.04 MI S Dry Creek · Structure no. 082240000000000

Built
1967
58 years old
Condition
Fair
inspected November 2023
Type
Tee Beam
Prestressed Concrete
Length
34 ft
1 main span
Daily traffic
90
2021 count
Owner
County
County Highway Agency

About this bridge

GLENWOOD/2450 over Dry Creek is a prestressed concrete tee beam carrying GLENWOOD/2450 over Dry Creek in Whitman County, Washington. It was built in 1967, so it is 58 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 90 vehicles a day, roughly 35% of them trucks, projected to reach 111 by 2044. The structure is 34 ft (10.4 m) long and 24 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

CarriesGLENWOOD/2450
CrossesDry Creek
Location0.04 MI S Dry Creek
RouteCounty Highway 24500
Coordinates46.96485, -117.28837
Functional classRural Minor Collector

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 protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating43.5 US tons
Inventory rating35.4 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span32 ft (9.8 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic90 (2021)
Projected traffic111 by 2044
Trucks35%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.3 mi (23 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was GLENWOOD/2450 over Dry Creek built?

It was built in 1967, making it 58 years old in 2025.

What condition is GLENWOOD/2450 over Dry Creek 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 November 2023.

How much traffic does GLENWOOD/2450 over Dry Creek carry?

About 90 vehicles per day (2021 count), of which roughly 35% are trucks.

How long is GLENWOOD/2450 over Dry Creek?

The structure is 34 ft (10.4 m) long with a longest span of 32 ft (9.8 m) and a deck 24 ft wide.

Who owns GLENWOOD/2450 over Dry Creek?

It is owned by the County Highway Agency.