US Bridges

Locher over Burlingame Ditch

GoodPosted for load

Walla Walla County, Washington · 0.226 N of Stateline RD · Structure no. 086819000000000

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
21 ft
1 main span
Daily traffic
720
2024 count
Owner
County
County Highway Agency

About this bridge

Locher over Burlingame Ditch is a aluminum, wrought iron, or cast iron culvert carrying Locher over Burlingame Ditch in Walla Walla County, Washington. It was built in 2002, so it is 23 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. Its operating status is: posted for load restriction.

It carries about 720 vehicles a day, roughly 40% of them trucks, projected to reach 880 by 2046. The structure is 21 ft (6.5 m) long and 50 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesLocher
CrossesBurlingame Ditch
Location0.226 N of Stateline RD
RouteCounty Highway 21470
Coordinates46.00436, -118.47244
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.3 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 20 + Mod
Structure length21 ft (6.5 m)
Longest span21 ft (6.5 m)
Deck width50 ft (15.2 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic720 (2024)
Projected traffic880 by 2046
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Locher over Burlingame Ditch built?

It was built in 2002, making it 23 years old in 2025.

What condition is Locher over Burlingame Ditch 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 September 2024.

How much traffic does Locher over Burlingame Ditch carry?

About 720 vehicles per day (2024 count), of which roughly 40% are trucks.

How long is Locher over Burlingame Ditch?

The structure is 21 ft (6.5 m) long with a longest span of 21 ft (6.5 m) and a deck 50 ft wide.

Who owns Locher over Burlingame Ditch?

It is owned by the County Highway Agency.