US Bridges

Schmid Road over Drainage Canal

Good

Grays Harbor County, Washington · Schmid Road MP 0.5 · Structure no. 088150000000000

Built
2010
15 years old
Condition
Good
inspected December 2023
Type
Slab
Prestressed Concrete
Length
36 ft
1 main span
Daily traffic
91
2023 count
Owner
County
County Highway Agency

About this bridge

Schmid Road over Drainage Canal is a prestressed concrete slab carrying Schmid Road over Drainage Canal in Grays Harbor County, Washington. It was built in 2010, so it is 15 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 91 vehicles a day, roughly 11% of them trucks, projected to reach 111 by 2043. The structure is 36 ft (11 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSchmid Road
CrossesDrainage Canal
LocationSchmid Road MP 0.5
RouteCounty Highway 11171
Coordinates46.81624, -124.09183
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 protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating92.2 US tons
Inventory rating55 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length36 ft (11 m)
Longest span33 ft (10.1 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic91 (2023)
Projected traffic111 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Schmid Road over Drainage Canal built?

It was built in 2010, making it 15 years old in 2025.

What condition is Schmid Road over Drainage Canal 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 2023.

How much traffic does Schmid Road over Drainage Canal carry?

About 91 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is Schmid Road over Drainage Canal?

The structure is 36 ft (11 m) long with a longest span of 33 ft (10.1 m) and a deck 32 ft wide.

Who owns Schmid Road over Drainage Canal?

It is owned by the County Highway Agency.