US Bridges

Carty RD over I-5

Good

Clark County, Washington · 0.9 N JCT SR 502 · Structure no. 0008055C0000000

Built
1968
57 years old
Condition
Good
inspected November 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
276 ft
4 main spans
Daily traffic
590
2002 count
Owner
State
State Highway Agency

About this bridge

Carty RD over I-5 is a prestressed concrete stringer/multi-beam or girder carrying Carty RD over I-5 in Clark County, Washington. It was built in 1968, so it is 57 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 590 vehicles a day, roughly 1% of them trucks, projected to reach 1,071 by 2036. The structure is 276 ft (84.1 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesCarty RD
CrossesI-5
Location0.9 N JCT SR 502
RouteCounty Highway 0
Coordinates45.79372, -122.67648
Functional classRural Major Collector

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.
Last inspectionNovember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.9 US tons
Inventory rating37 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length276 ft (84.1 m)
Longest span92 ft (28 m)
Deck width34 ft (10.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic590 (2002)
Projected traffic1,071 by 2036
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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$4 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Carty RD over I-5 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Carty RD over I-5 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 2021.

How much traffic does Carty RD over I-5 carry?

About 590 vehicles per day (2002 count), of which roughly 1% are trucks.

How long is Carty RD over I-5?

The structure is 276 ft (84.1 m) long with a longest span of 92 ft (28 m) and a deck 34 ft wide.

Who owns Carty RD over I-5?

It is owned by the State Highway Agency.