US Bridges

SR 500 over Hjf Canal

Poor

Clark County, Washington · 13.8 E JCT SR 503 · Structure no. 000000FV0000000

Built
1915
110 years old, rebuilt 1937
Condition
Poor
inspected April 2024
Type
Tee Beam
Concrete
Length
25 ft
1 main span
Daily traffic
7,516
2023 count
Owner
State
State Highway Agency

About this bridge

SR 500 over Hjf Canal is a concrete tee beam carrying SR 500 over Hjf Canal in Clark County, Washington. It was built in 1915 and reconstructed in 1937, so it is 110 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 7,516 vehicles a day, roughly 4% of them trucks, projected to reach 11,211 by 2039. The structure is 25 ft (7.6 m) long and 50 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSR 500
CrossesHjf Canal
Location13.8 E JCT SR 503
RouteState Highway 500
Coordinates45.58978, -122.40306
Functional classUrban Minor Arterial

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating16 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width50 ft (15.2 m)
Roadway width37 ft (11.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,516 (2023)
Projected traffic11,211 by 2039
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed9.9 mi (16 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$463,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 500 over Hjf Canal built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1937.

What condition is SR 500 over Hjf Canal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does SR 500 over Hjf Canal carry?

About 7,516 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is SR 500 over Hjf Canal?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 50 ft wide.

Who owns SR 500 over Hjf Canal?

It is owned by the State Highway Agency.