US Bridges

Military RD over I-5

Fair

King County, Washington · 2.0 N JCT SR 516 · Structure no. 0007075A0000000

Built
1963
62 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
515 ft
4 main spans
Daily traffic
13,282
2016 count
Owner
State
State Highway Agency

About this bridge

Military RD over I-5 is a concrete continuous box beam or girders - multiple carrying Military RD over I-5 in King County, Washington. It was built in 1963, so it is 62 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 13,282 vehicles a day, roughly 1% of them trucks, projected to reach 20,801 by 2038. The structure is 515 ft (156.9 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesMilitary RD
CrossesI-5
Location2.0 N JCT SR 516
RouteCity Street 5
CountyKing County
StateWashington
Coordinates47.42085, -122.28754
Functional classUrban Minor 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.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating48 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length515 ft (156.9 m)
Longest span140 ft (42.7 m)
Deck width33 ft (10.2 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,282 (2016)
Projected traffic20,801 by 2038
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.7 mi (6 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$8.3 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Military RD over I-5 built?

It was built in 1963, making it 62 years old in 2025.

What condition is Military RD 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 October 2024.

How much traffic does Military RD over I-5 carry?

About 13,282 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Military RD over I-5?

The structure is 515 ft (156.9 m) long with a longest span of 140 ft (42.7 m) and a deck 33 ft wide.

Who owns Military RD over I-5?

It is owned by the State Highway Agency.