US Bridges

SR 14 over Gibbons CR

Good

Clark County, Washington · 3.5 E JCT SR 500 · Structure no. 0009275B0000000

Built
1972
53 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
65 ft
3 main spans
Daily traffic
6,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 14 over Gibbons CR is a concrete continuous slab carrying SR 14 over Gibbons CR in Clark County, Washington. It was built in 1972, so it is 53 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 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 6,000 vehicles a day, roughly 13% of them trucks, projected to reach 9,133 by 2039. The structure is 65 ft (19.8 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 14
CrossesGibbons CR
Location3.5 E JCT SR 500
RouteState Highway 14
Coordinates45.57142, -122.31589
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.9 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length65 ft (19.8 m)
Longest span47 ft (14.3 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,000 (2023)
Projected traffic9,133 by 2039
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 14 over Gibbons CR built?

It was built in 1972, making it 53 years old in 2025.

What condition is SR 14 over Gibbons CR 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 April 2024.

How much traffic does SR 14 over Gibbons CR carry?

About 6,000 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is SR 14 over Gibbons CR?

The structure is 65 ft (19.8 m) long with a longest span of 47 ft (14.3 m) and a deck 43 ft wide.

Who owns SR 14 over Gibbons CR?

It is owned by the State Highway Agency.