US Bridges

Martin Way East over Mc Allister Creek

Fair

Thurston County, Washington · .23 M SW of Nisqually Cu · Structure no. 086522000000000

Built
2000
25 years old
Condition
Fair
inspected September 2023
Type
Slab
Concrete Continuous
Length
118 ft
3 main spans
Daily traffic
17,895
2020 count
Owner
County
County Highway Agency

About this bridge

Martin Way East over Mc Allister Creek is a concrete continuous slab carrying Martin Way East over Mc Allister Creek in Thurston County, Washington. It was built in 2000, so it is 25 years old, younger 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 17,895 vehicles a day, roughly 15% of them trucks, projected to reach 27,665 by 2042. The structure is 118 ft (36 m) long and 73 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesMartin Way East
CrossesMc Allister Creek
Location.23 M SW of Nisqually Cu
RouteCounty Highway 13190
CountyThurston County
StateWashington
Coordinates47.06483, -122.72425
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82 US tons
Inventory rating48.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length118 ft (36 m)
Longest span46 ft (14 m)
Deck width73 ft (22.3 m)
Roadway width71 ft (21.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,895 (2020)
Projected traffic27,665 by 2042
Trucks15%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Martin Way East over Mc Allister Creek built?

It was built in 2000, making it 25 years old in 2025.

What condition is Martin Way East over Mc Allister Creek 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 September 2023.

How much traffic does Martin Way East over Mc Allister Creek carry?

About 17,895 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Martin Way East over Mc Allister Creek?

The structure is 118 ft (36 m) long with a longest span of 46 ft (14 m) and a deck 73 ft wide.

Who owns Martin Way East over Mc Allister Creek?

It is owned by the County Highway Agency.