US Bridges

Martin Road over Wasteway

Good

Grant County, Washington · Martin Road at Adams · Structure no. 088923000000000

Built
2017
8 years old
Condition
Good
inspected December 2024
Type
Slab
Prestressed Concrete
Length
45 ft
1 main span
Daily traffic
188
2021 count
Owner
County
County Highway Agency

About this bridge

Martin Road over Wasteway is a prestressed concrete slab carrying Martin Road over Wasteway in Grant County, Washington. It was built in 2017, so it is 8 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 188 vehicles a day, roughly 21% of them trucks, projected to reach 450 by 2043. The structure is 45 ft (13.7 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesMartin Road
CrossesWasteway
LocationMartin Road at Adams
RouteCounty Highway 30400
Coordinates47.26097, -119.76863
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 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 rating61.1 US tons
Inventory rating47.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length45 ft (13.7 m)
Longest span43 ft (13.1 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic188 (2021)
Projected traffic450 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$684,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Martin Road over Wasteway built?

It was built in 2017, making it 8 years old in 2025.

What condition is Martin Road over Wasteway 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 December 2024.

How much traffic does Martin Road over Wasteway carry?

About 188 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is Martin Road over Wasteway?

The structure is 45 ft (13.7 m) long with a longest span of 43 ft (13.1 m) and a deck 32 ft wide.

Who owns Martin Road over Wasteway?

It is owned by the County Highway Agency.