US Bridges

Shelton Matlock RD over Bingham Creek

Good

Mason County, Washington · 1.3 E Matlock · Structure no. 081495000000000

Built
1960
65 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete Continuous
Length
77 ft
3 main spans
Daily traffic
1,437
2020 count
Owner
County
County Highway Agency

About this bridge

Shelton Matlock RD over Bingham Creek is a concrete continuous slab carrying Shelton Matlock RD over Bingham Creek in Mason County, Washington. It was built in 1960, so it is 65 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,437 vehicles a day, roughly 15% of them trucks, projected to reach 1,900 by 2044. The structure is 77 ft (23.6 m) long and 28 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

CarriesShelton Matlock RD
CrossesBingham Creek
Location1.3 E Matlock
RouteCounty Highway 90100
Coordinates47.23667, -123.38
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation6: Equal to present minimum 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 rating47 US tons
Inventory rating28 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length77 ft (23.6 m)
Longest span30 ft (9.1 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,437 (2020)
Projected traffic1,900 by 2044
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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$30,000 (2030 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Shelton Matlock RD over Bingham Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is Shelton Matlock RD over Bingham 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 August 2024.

How much traffic does Shelton Matlock RD over Bingham Creek carry?

About 1,437 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Shelton Matlock RD over Bingham Creek?

The structure is 77 ft (23.6 m) long with a longest span of 30 ft (9.1 m) and a deck 28 ft wide.

Who owns Shelton Matlock RD over Bingham Creek?

It is owned by the County Highway Agency.