US Bridges

Deegan Road West over Coffee Creek

Good

Mason County, Washington · 2.35 E Shelton Matlock RD · Structure no. 089185000000000

Built
2020
5 years old
Condition
Good
inspected June 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
23 ft
1 main span
Daily traffic
187
2020 count
Owner
County
County Highway Agency

About this bridge

Deegan Road West over Coffee Creek is a aluminum, wrought iron, or cast iron culvert carrying Deegan Road West over Coffee Creek in Mason County, Washington. It was built in 2020, so it is 5 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 187 vehicles a day, projected to reach 250 by 2040. The structure is 23 ft (6.9 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesDeegan Road West
CrossesCoffee Creek
Location2.35 E Shelton Matlock RD
RouteCounty Highway 6110
CountyMason County
StateWashington
Coordinates47.18234, -123.15475
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating42 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHL 93
Structure length23 ft (6.9 m)
Longest span23 ft (6.9 m)
Deck width28 ft (8.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic187 (2020)
Projected traffic250 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Deegan Road West over Coffee Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is Deegan Road West over Coffee Creek 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 2024.

How much traffic does Deegan Road West over Coffee Creek carry?

About 187 vehicles per day (2020 count).

How long is Deegan Road West over Coffee Creek?

The structure is 23 ft (6.9 m) long with a longest span of 23 ft (6.9 m) and a deck 28 ft wide.

Who owns Deegan Road West over Coffee Creek?

It is owned by the County Highway Agency.