US Bridges

Steptoe Street over Branch Spring Creek

Good

Whitman County, Washington · 0.40 MI W SR 27 · Structure no. 088632000000000

Built
2013
12 years old
Condition
Good
inspected January 2024
Type
Slab
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
200
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Steptoe Street over Branch Spring Creek is a prestressed concrete slab carrying Steptoe Street over Branch Spring Creek in Whitman County, Washington. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 20% of them trucks, projected to reach 201 by 2044. The structure is 44 ft (13.4 m) long and 44 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSteptoe Street
CrossesBranch Spring Creek
Location0.40 MI W SR 27
RouteCity Street 890
Coordinates47.12825, -117.24928
Functional classUrban Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to 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 rating44 US tons
Inventory rating26.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length44 ft (13.4 m)
Longest span41 ft (12.5 m)
Deck width44 ft (13.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic201 by 2044
Trucks20%
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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$648,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Steptoe Street over Branch Spring Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is Steptoe Street over Branch Spring 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 2024.

How much traffic does Steptoe Street over Branch Spring Creek carry?

About 200 vehicles per day (2021 count), of which roughly 20% are trucks.

How long is Steptoe Street over Branch Spring Creek?

The structure is 44 ft (13.4 m) long with a longest span of 41 ft (12.5 m) and a deck 44 ft wide.

Who owns Steptoe Street over Branch Spring Creek?

It is owned by the City or Municipal Highway Agency.