US Bridges

Mays Bridge Road over Chehalis River

Good

Lewis County, Washington · North of SR 6 MP 37.20 · Structure no. 088840000000000

Built
2015
10 years old
Condition
Good
inspected September 2024
Type
Girder and Floorbeam System
Steel
Length
209 ft
1 main span
Daily traffic
302
2020 count
Owner
County
County Highway Agency

About this bridge

Mays Bridge Road over Chehalis River is a steel girder and floorbeam system carrying Mays Bridge Road over Chehalis River in Lewis County, Washington. It was built in 2015, so it is 10 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 302 vehicles a day, roughly 17% of them trucks, projected to reach 546 by 2040. The structure is 209 ft (63.7 m) long and 31 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesMays Bridge Road
CrossesChehalis River
LocationNorth of SR 6 MP 37.20
RouteCounty Highway 27762
CountyLewis County
StateWashington
Coordinates46.63394, -123.19
Functional classRural Minor 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating51 US tons
Inventory rating39.2 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length209 ft (63.7 m)
Longest span200 ft (61 m)
Deck width31 ft (9.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deck19 ft (5.9 m)

Traffic and service

Average daily traffic302 (2020)
Projected traffic546 by 2040
Trucks17%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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$3.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mays Bridge Road over Chehalis River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Mays Bridge Road over Chehalis River 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 September 2024.

How much traffic does Mays Bridge Road over Chehalis River carry?

About 302 vehicles per day (2020 count), of which roughly 17% are trucks.

How long is Mays Bridge Road over Chehalis River?

The structure is 209 ft (63.7 m) long with a longest span of 200 ft (61 m) and a deck 31 ft wide.

Who owns Mays Bridge Road over Chehalis River?

It is owned by the County Highway Agency.