US Bridges

Fort Road over Mud Lake Drain Canal

Good

Yakima County, Washington · 00.28 E Brownstown RD · Structure no. 089054000000000

Built
2019
6 years old
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
94 ft
1 main span
Daily traffic
2,590
2019 count
Owner
County
County Highway Agency

About this bridge

Fort Road over Mud Lake Drain Canal is a prestressed concrete stringer/multi-beam or girder carrying Fort Road over Mud Lake Drain Canal in Yakima County, Washington. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,590 vehicles a day, roughly 15% of them trucks, projected to reach 2,830 by 2039. The structure is 94 ft (28.7 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesFort Road
CrossesMud Lake Drain Canal
Location00.28 E Brownstown RD
RouteCounty Highway 50000
Coordinates46.37534, -120.6014
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.3 US tons
Inventory rating47.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length94 ft (28.7 m)
Longest span87 ft (26.5 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,590 (2019)
Projected traffic2,830 by 2039
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

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$3.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Fort Road over Mud Lake Drain Canal built?

It was built in 2019, making it 6 years old in 2025.

What condition is Fort Road over Mud Lake Drain Canal 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 Fort Road over Mud Lake Drain Canal carry?

About 2,590 vehicles per day (2019 count), of which roughly 15% are trucks.

How long is Fort Road over Mud Lake Drain Canal?

The structure is 94 ft (28.7 m) long with a longest span of 87 ft (26.5 m) and a deck 43 ft wide.

Who owns Fort Road over Mud Lake Drain Canal?

It is owned by the County Highway Agency.