US Bridges

Mineral Creek Road over Mineral Creek

Good

Lewis County, Washington · 1.8 E Mineral · Structure no. 087327000000000

Built
2005
20 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
1 main span
Daily traffic
168
2022 count
Owner
County
County Highway Agency

About this bridge

Mineral Creek Road over Mineral Creek is a prestressed concrete stringer/multi-beam or girder carrying Mineral Creek Road over Mineral Creek in Lewis County, Washington. It was built in 2005, so it is 20 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 168 vehicles a day, roughly 15% of them trucks, projected to reach 304 by 2042. The structure is 200 ft (61 m) long and 31 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesMineral Creek Road
CrossesMineral Creek
Location1.8 E Mineral
RouteCounty Highway 79665
Coordinates46.70967, -122.15542
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98 US tons
Inventory rating74 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length200 ft (61 m)
Longest span197 ft (60 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2022)
Projected traffic304 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$2.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mineral Creek Road over Mineral Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is Mineral Creek Road over Mineral 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 January 2024.

How much traffic does Mineral Creek Road over Mineral Creek carry?

About 168 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is Mineral Creek Road over Mineral Creek?

The structure is 200 ft (61 m) long with a longest span of 197 ft (60 m) and a deck 31 ft wide.

Who owns Mineral Creek Road over Mineral Creek?

It is owned by the County Highway Agency.