US Bridges

72nd Ave SE over First Hill Lid

Good

King County, Washington · 3.4 E JCT I-5 · Structure no. 0013659A0000000

Built
1992
33 years old
Condition
Good
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
299 ft
5 main spans
Daily traffic
2,472
2002 count
Owner
State
State Highway Agency

About this bridge

72nd Ave SE over First Hill Lid is a concrete continuous box beam or girders - multiple carrying 72nd Ave SE over First Hill Lid in King County, Washington. It was built in 1992, so it is 33 years old, younger 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 2,472 vehicles a day, roughly 3% of them trucks, projected to reach 4,321 by 2036. The structure is 299 ft (91.1 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Carries72nd Ave SE
CrossesFirst Hill Lid
Location3.4 E JCT I-5
RouteCity Street 90
Coordinates47.59206, -122.24308
Functional classUrban 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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.4 US tons
Inventory rating19.6 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length299 ft (91.1 m)
Longest span79 ft (24.1 m)
Deck width33 ft (10.2 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,472 (2002)
Projected traffic4,321 by 2036
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesOther
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 statusEligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.7 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was 72nd Ave SE over First Hill Lid built?

It was built in 1992, making it 33 years old in 2025.

What condition is 72nd Ave SE over First Hill Lid 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 June 2023.

How much traffic does 72nd Ave SE over First Hill Lid carry?

About 2,472 vehicles per day (2002 count), of which roughly 3% are trucks.

How long is 72nd Ave SE over First Hill Lid?

The structure is 299 ft (91.1 m) long with a longest span of 79 ft (24.1 m) and a deck 33 ft wide.

Who owns 72nd Ave SE over First Hill Lid?

It is owned by the State Highway Agency.