US Bridges

Co. RD 68420 over Spring Creek

Good

Lincoln County, Washington · 0.75 W SR 231 · Structure no. 086419000000000

Built
1997
28 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
105
2021 count
Owner
County
County Highway Agency

About this bridge

Co. RD 68420 over Spring Creek is a prestressed concrete stringer/multi-beam or girder carrying Co. RD 68420 over Spring Creek in Lincoln County, Washington. It was built in 1997, so it is 28 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 105 vehicles a day, roughly 40% of them trucks, projected to reach 150 by 2042. The structure is 70 ft (21.3 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCo. RD 68420
CrossesSpring Creek
Location0.75 W SR 231
RouteCounty Highway 68420
Coordinates47.78875, -117.90611
Functional classRural Local

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span67 ft (20.4 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic105 (2021)
Projected traffic150 by 2042
Trucks40%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Co. RD 68420 over Spring Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Co. RD 68420 over Spring Creek 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 2023.

How much traffic does Co. RD 68420 over Spring Creek carry?

About 105 vehicles per day (2021 count), of which roughly 40% are trucks.

How long is Co. RD 68420 over Spring Creek?

The structure is 70 ft (21.3 m) long with a longest span of 67 ft (20.4 m) and a deck 31 ft wide.

Who owns Co. RD 68420 over Spring Creek?

It is owned by the County Highway Agency.