US Bridges

Byrnes RD over UP RR

Fair

Walla Walla County, Washington · 03.0 W Touchet · Structure no. 084894000000000

Built
1920
105 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
25 ft
1 main span
Daily traffic
113
2021 count
Owner
County
County Highway Agency

About this bridge

Byrnes RD over UP RR is a concrete stringer/multi-beam or girder carrying Byrnes RD over UP RR in Walla Walla County, Washington. It was built in 1920, so it is 105 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 113 vehicles a day, roughly 10% of them trucks, projected to reach 215 by 2043. The structure is 25 ft (7.5 m) long and 27 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesByrnes RD
CrossesUP RR
Location03.0 W Touchet
RouteCounty Highway 17080
CountyWalla Walla County
StateWashington
Coordinates46.0425, -118.74611
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating17 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length25 ft (7.5 m)
Longest span21 ft (6.3 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic113 (2021)
Projected traffic215 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Byrnes RD over UP RR built?

It was built in 1920, making it 105 years old in 2025.

What condition is Byrnes RD over UP RR 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 September 2023.

How much traffic does Byrnes RD over UP RR carry?

About 113 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Byrnes RD over UP RR?

The structure is 25 ft (7.5 m) long with a longest span of 21 ft (6.3 m) and a deck 27 ft wide.

Who owns Byrnes RD over UP RR?

It is owned by the County Highway Agency.