US Bridges

SR 500 over 5th Plain CR

Good

Clark County, Washington · 3.7 E JCT SR 503 · Structure no. 0006963A0000000

Built
1962
63 years old
Condition
Good
inspected October 2023
Type
Slab
Concrete Continuous
Length
42 ft
2 main spans
Daily traffic
11,484
2023 count
Owner
State
State Highway Agency

About this bridge

SR 500 over 5th Plain CR is a concrete continuous slab carrying SR 500 over 5th Plain CR in Clark County, Washington. It was built in 1962, 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 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 11,484 vehicles a day, roughly 5% of them trucks, projected to reach 17,289 by 2039. The structure is 42 ft (12.8 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesSR 500
Crosses5th Plain CR
Location3.7 E JCT SR 503
RouteState Highway 500
CountyClark County
StateWashington
Coordinates45.67203, -122.49466
Functional classRural Minor Arterial

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating30 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 15
Structure length42 ft (12.8 m)
Longest span19 ft (5.8 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,484 (2023)
Projected traffic17,289 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$559,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 500 over 5th Plain CR built?

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

What condition is SR 500 over 5th Plain 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 October 2023.

How much traffic does SR 500 over 5th Plain CR carry?

About 11,484 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is SR 500 over 5th Plain CR?

The structure is 42 ft (12.8 m) long with a longest span of 19 ft (5.8 m) and a deck 28 ft wide.

Who owns SR 500 over 5th Plain CR?

It is owned by the State Highway Agency.