US Bridges

Elma Gate Road E over Harris Creek

Fair

Grays Harbor County, Washington · 00.5 S JCT SR12 · Structure no. 084327000000000

Built
1917
108 years old, rebuilt 1978
Condition
Fair
inspected February 2023
Type
Arch - Deck
Concrete
Length
32 ft
1 main span
Daily traffic
347
2023 count
Owner
County
County Highway Agency

About this bridge

Elma Gate Road E over Harris Creek is a concrete arch - deck carrying Elma Gate Road E over Harris Creek in Grays Harbor County, Washington. It was built in 1917 and reconstructed in 1978, so it is 108 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 347 vehicles a day, roughly 5% of them trucks, projected to reach 432 by 2043. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesElma Gate Road E
CrossesHarris Creek
Location00.5 S JCT SR12
RouteCounty Highway 81620
Coordinates46.83667, -123.2225
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating20.9 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span20 ft (6.1 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic347 (2023)
Projected traffic432 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Elma Gate Road E over Harris Creek built?

It was built in 1917, making it 108 years old in 2025. It was reconstructed in 1978.

What condition is Elma Gate Road E over Harris Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does Elma Gate Road E over Harris Creek carry?

About 347 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Elma Gate Road E over Harris Creek?

The structure is 32 ft (9.8 m) long with a longest span of 20 ft (6.1 m) and a deck 30 ft wide.

Who owns Elma Gate Road E over Harris Creek?

It is owned by the County Highway Agency.