US Bridges

Humorist Road over US 12

Good

Walla Walla County, Washington · 1.1 E JCT SR 124 · Structure no. 0018033B0000000

Built
2012
13 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
270 ft
2 main spans
Daily traffic
2,029
2012 count
Owner
State
State Highway Agency

About this bridge

Humorist Road over US 12 is a prestressed concrete continuous stringer/multi-beam or girder carrying Humorist Road over US 12 in Walla Walla County, Washington. It was built in 2012, so it is 13 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 2,029 vehicles a day, roughly 10% of them trucks, projected to reach 2,427 by 2032. The structure is 270 ft (82.3 m) long and 50 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesHumorist Road
CrossesUS 12
Location1.1 E JCT SR 124
RouteCounty Highway 0
CountyWalla Walla County
StateWashington
Coordinates46.19753, -118.99686
Functional classUrban Minor Arterial

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.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating46.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length270 ft (82.3 m)
Longest span133 ft (40.5 m)
Deck width50 ft (15.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,029 (2012)
Projected traffic2,427 by 2032
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$5.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Humorist Road over US 12 built?

It was built in 2012, making it 13 years old in 2025.

What condition is Humorist Road over US 12 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 March 2024.

How much traffic does Humorist Road over US 12 carry?

About 2,029 vehicles per day (2012 count), of which roughly 10% are trucks.

How long is Humorist Road over US 12?

The structure is 270 ft (82.3 m) long with a longest span of 133 ft (40.5 m) and a deck 50 ft wide.

Who owns Humorist Road over US 12?

It is owned by the State Highway Agency.