US Bridges

I-5 over Cmstpr RR

Fair

Pierce County, Washington · 1.4 N JCT SR 16 · Structure no. 0007505C0000000

Built
1965
60 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
225 ft
4 main spans
Daily traffic
4,393
2012 count
Owner
State
State Highway Agency

About this bridge

I-5 over Cmstpr RR is a concrete continuous box beam or girders - multiple carrying I-5 over Cmstpr RR in Pierce County, Washington. It was built in 1965, so it is 60 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 4,393 vehicles a day, roughly 5% of them trucks, projected to reach 7,556 by 2036. The structure is 225 ft (68.6 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-5
CrossesCmstpr RR
Location1.4 N JCT SR 16
RouteInterstate 5
Coordinates47.23392, -122.43134
Functional classUrban Principal Arterial - Interstate

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.
Substructure7 GoodSome minor problems.
Last inspectionMay 2024
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 rating75.9 US tons
Inventory rating45 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length225 ft (68.6 m)
Longest span68 ft (20.7 m)
Deck width27 ft (8.1 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deck19 ft (5.9 m)

Traffic and service

Average daily traffic4,393 (2012)
Projected traffic7,556 by 2036
Trucks5%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed1.2 mi (2 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$2.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-5 over Cmstpr RR built?

It was built in 1965, making it 60 years old in 2025.

What condition is I-5 over Cmstpr RR 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 May 2024.

How much traffic does I-5 over Cmstpr RR carry?

About 4,393 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is I-5 over Cmstpr RR?

The structure is 225 ft (68.6 m) long with a longest span of 68 ft (20.7 m) and a deck 27 ft wide.

Who owns I-5 over Cmstpr RR?

It is owned by the State Highway Agency.