US Bridges

Gaffney Road 3606 over Drainage

Good

Lincoln County, Washington · 1.52 N JCT SR 23 · Structure no. 086258000000000

Built
1930
95 years old, rebuilt 1982
Condition
Good
inspected November 2022
Type
Culvert
Steel
Length
31 ft
1 main span
Daily traffic
65
2018 count
Owner
County
County Highway Agency

About this bridge

Gaffney Road 3606 over Drainage is a steel culvert carrying Gaffney Road 3606 over Drainage in Lincoln County, Washington. It was built in 1930 and reconstructed in 1982, so it is 95 years old, older 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 65 vehicles a day, roughly 40% of them trucks, projected to reach 115 by 2040. The structure is 31 ft (9.4 m) long.

CarriesGaffney Road 3606
CrossesDrainage
Location1.52 N JCT SR 23
RouteCounty Highway 36060
Coordinates47.36333, -118.00667
Functional classRural Minor 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 inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.1 US tons
Inventory rating58.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadH 20
Structure length31 ft (9.4 m)
Longest span31 ft (9.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (2018)
Projected traffic115 by 2040
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Gaffney Road 3606 over Drainage built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1982.

What condition is Gaffney Road 3606 over Drainage 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 November 2022.

How much traffic does Gaffney Road 3606 over Drainage carry?

About 65 vehicles per day (2018 count), of which roughly 40% are trucks.

How long is Gaffney Road 3606 over Drainage?

The structure is 31 ft (9.4 m) long with a longest span of 31 ft (9.4 m).

Who owns Gaffney Road 3606 over Drainage?

It is owned by the County Highway Agency.