US Bridges

4th Street over Branch of Mccoy Creek

Good

Whitman County, Washington · 0.01 N Bartlet ST · Structure no. 085384000000000

Built
1983
42 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
35
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

4th Street over Branch of Mccoy Creek is a prestressed concrete stringer/multi-beam or girder carrying 4th Street over Branch of Mccoy Creek in Whitman County, Washington. It was built in 1983, so it is 42 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 36 by 2042. The structure is 28 ft (8.5 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries4th Street
CrossesBranch of Mccoy Creek
Location0.01 N Bartlet ST
RouteCity Street 890
Coordinates47.12938, -117.24715
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 inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadUnknown
Structure length28 ft (8.5 m)
Longest span27 ft (8.1 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2023)
Projected traffic36 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.4 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 4th Street over Branch of Mccoy Creek built?

It was built in 1983, making it 42 years old in 2025.

What condition is 4th Street over Branch of Mccoy 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 January 2025.

How much traffic does 4th Street over Branch of Mccoy Creek carry?

About 35 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is 4th Street over Branch of Mccoy Creek?

The structure is 28 ft (8.5 m) long with a longest span of 27 ft (8.1 m) and a deck 29 ft wide.

Who owns 4th Street over Branch of Mccoy Creek?

It is owned by the City or Municipal Highway Agency.