US Bridges

Gravelly Lake Driv over I-5

Fair

Pierce County, Washington · 9.7 N Thurston CO · Structure no. 0005943A0000000

Built
1959
66 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete Continuous
Length
145 ft
2 main spans
Daily traffic
14,297
2010 count
Owner
State
State Highway Agency

About this bridge

Gravelly Lake Driv over I-5 is a concrete continuous slab carrying Gravelly Lake Driv over I-5 in Pierce County, Washington. It was built in 1959, so it is 66 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 14,297 vehicles a day, roughly 5% of them trucks, projected to reach 24,333 by 2036. The structure is 145 ft (44.2 m) long and 68 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGravelly Lake Driv
CrossesI-5
Location9.7 N Thurston CO
RouteCity Street 0
CountyPierce County
StateWashington
Coordinates47.13711, -122.52561
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to 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 rating79 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length145 ft (44.2 m)
Longest span71 ft (21.6 m)
Deck width68 ft (20.8 m)
Roadway width56 ft (17.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,297 (2010)
Projected traffic24,333 by 2036
Trucks5%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Gravelly Lake Driv over I-5 built?

It was built in 1959, making it 66 years old in 2025.

What condition is Gravelly Lake Driv over I-5 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Gravelly Lake Driv over I-5 carry?

About 14,297 vehicles per day (2010 count), of which roughly 5% are trucks.

How long is Gravelly Lake Driv over I-5?

The structure is 145 ft (44.2 m) long with a longest span of 71 ft (21.6 m) and a deck 68 ft wide.

Who owns Gravelly Lake Driv over I-5?

It is owned by the State Highway Agency.