US Bridges

I-205 over Lp&n RY

Good

Clark County, Washington · 3.1 N JCT SR 500 · Structure no. 0009241F0000000

Built
1972
53 years old
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
4 main spans
Daily traffic
37,534
2023 count
Owner
State
State Highway Agency

About this bridge

I-205 over Lp&n RY is a prestressed concrete continuous stringer/multi-beam or girder carrying I-205 over Lp&n RY 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 37,534 vehicles a day, roughly 7% of them trucks, projected to reach 53,885 by 2039. The structure is 232 ft (70.7 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-205
CrossesLp&n RY
Location3.1 N JCT SR 500
RouteInterstate 205
CountyClark County
StateWashington
Coordinates45.69263, -122.60731
Functional classUrban Principal Arterial - Interstate

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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.7 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span67 ft (20.4 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,534 (2023)
Projected traffic53,885 by 2039
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$4.4 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-205 over Lp&n RY built?

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

What condition is I-205 over Lp&n RY 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 I-205 over Lp&n RY carry?

About 37,534 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I-205 over Lp&n RY?

The structure is 232 ft (70.7 m) long with a longest span of 67 ft (20.4 m) and a deck 41 ft wide.

Who owns I-205 over Lp&n RY?

It is owned by the State Highway Agency.