US Bridges

Minkler Road 9350 over Coal Creek

Fair

Skagit County, Washington · 0.1 E JCT Sims Road · Structure no. 081910000000000

Built
1984
41 years old
Condition
Fair
inspected May 2024
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
1,136
2021 count
Owner
County
County Highway Agency

About this bridge

Minkler Road 9350 over Coal Creek is a concrete slab carrying Minkler Road 9350 over Coal Creek in Skagit County, Washington. It was built in 1984, so it is 41 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 1,136 vehicles a day, roughly 8% of them trucks, projected to reach 2,052 by 2041. The structure is 29 ft (8.8 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMinkler Road 9350
CrossesCoal Creek
Location0.1 E JCT Sims Road
RouteCounty Highway 93500
CountySkagit County
StateWashington
Coordinates48.52454, -122.15271
Functional classRural Minor Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating96 US tons
Inventory rating57 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span28 ft (8.5 m)
Deck width36 ft (11 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,136 (2021)
Projected traffic2,052 by 2041
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedDeck rehabilitation with only incidental widening
Estimated improvement cost$523,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Minkler Road 9350 over Coal Creek built?

It was built in 1984, making it 41 years old in 2025.

What condition is Minkler Road 9350 over Coal 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 May 2024.

How much traffic does Minkler Road 9350 over Coal Creek carry?

About 1,136 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Minkler Road 9350 over Coal Creek?

The structure is 29 ft (8.8 m) long with a longest span of 28 ft (8.5 m) and a deck 36 ft wide.

Who owns Minkler Road 9350 over Coal Creek?

It is owned by the County Highway Agency.