US Bridges

Shelton Matlock RD over Goldsborough Creek

Good

Mason County, Washington · 1.38 W JCT SR 3 · Structure no. 083219000000000

Built
1977
48 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
100 ft
1 main span
Daily traffic
8,200
2020 count
Owner
County
County Highway Agency

About this bridge

Shelton Matlock RD over Goldsborough Creek is a prestressed concrete stringer/multi-beam or girder carrying Shelton Matlock RD over Goldsborough Creek in Mason County, Washington. It was built in 1977, so it is 48 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 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 8,200 vehicles a day, roughly 10% of them trucks, projected to reach 10,000 by 2044. The structure is 100 ft (30.5 m) long and 42 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesShelton Matlock RD
CrossesGoldsborough Creek
Location1.38 W JCT SR 3
RouteCounty Highway 90100
Coordinates47.21, -123.12333
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.
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
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating95 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length100 ft (30.5 m)
Longest span92 ft (27.9 m)
Deck width42 ft (12.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,200 (2020)
Projected traffic10,000 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Shelton Matlock RD over Goldsborough Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is Shelton Matlock RD over Goldsborough 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 Goldsborough Creek carry?

About 8,200 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Shelton Matlock RD over Goldsborough Creek?

The structure is 100 ft (30.5 m) long with a longest span of 92 ft (27.9 m) and a deck 42 ft wide.

Who owns Shelton Matlock RD over Goldsborough Creek?

It is owned by the County Highway Agency.