US Bridges

SR 6 over Fronia Creek

Good

Lewis County, Washington · 6.5 E Pacific CO · Structure no. 0019412A0000000

Built
2019
6 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete
Length
26 ft
1 main span
Daily traffic
2,524
2023 count
Owner
State
State Highway Agency

About this bridge

SR 6 over Fronia Creek is a concrete slab carrying SR 6 over Fronia Creek in Lewis County, Washington. It was built in 2019, so it is 6 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 2,524 vehicles a day, roughly 12% of them trucks, projected to reach 3,078 by 2039. The structure is 26 ft (7.9 m) long and 37 ft wide.

CarriesSR 6
CrossesFronia Creek
Location6.5 E Pacific CO
RouteState Highway 6
Coordinates46.60944, -123.27506
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating106.8 US tons
Inventory rating87.5 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width37 ft (11.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,524 (2023)
Projected traffic3,078 by 2039
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$445,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 6 over Fronia Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is SR 6 over Fronia 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 November 2023.

How much traffic does SR 6 over Fronia Creek carry?

About 2,524 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 6 over Fronia Creek?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 37 ft wide.

Who owns SR 6 over Fronia Creek?

It is owned by the State Highway Agency.