US Bridges

Kellog Hollow Rd. over Tucannon River

Poor

Columbia County, Washington · 0.2 SW JCT SR 261 · Structure no. 081650000000000

Built
1962
63 years old, rebuilt 1965
Condition
Poor
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
114 ft
2 main spans
Daily traffic
350
2019 count
Owner
County
County Highway Agency

About this bridge

Kellog Hollow Rd. over Tucannon River is a steel stringer/multi-beam or girder carrying Kellog Hollow Rd. over Tucannon River in Columbia County, Washington. It was built in 1962 and reconstructed in 1965, so it is 63 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 350 vehicles a day, roughly 36% of them trucks, projected to reach 450 by 2041. The structure is 114 ft (34.7 m) long and 18 ft wide. If it were closed, the detour would be 42.3 mi (68 km).

Location

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CarriesKellog Hollow Rd.
CrossesTucannon River
Location0.2 SW JCT SR 261
RouteCounty Highway 92250
CountyColumbia County
StateWashington
Coordinates46.51722, -118.12936
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating55 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length114 ft (34.7 m)
Longest span56 ft (17.1 m)
Deck width18 ft (5.5 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2019)
Projected traffic450 by 2041
Trucks36%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed42.3 mi (68 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$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Kellog Hollow Rd. over Tucannon River built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1965.

What condition is Kellog Hollow Rd. over Tucannon River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.

How much traffic does Kellog Hollow Rd. over Tucannon River carry?

About 350 vehicles per day (2019 count), of which roughly 36% are trucks.

How long is Kellog Hollow Rd. over Tucannon River?

The structure is 114 ft (34.7 m) long with a longest span of 56 ft (17.1 m) and a deck 18 ft wide.

Who owns Kellog Hollow Rd. over Tucannon River?

It is owned by the County Highway Agency.