US Bridges

South Bank Road over Gaddis Creek

Good

Grays Harbor County, Washington · 0.53 S JCT 96540 · Structure no. 088954000000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Culvert
Steel
Length
21 ft
1 main span
Daily traffic
832
2023 count
Owner
County
County Highway Agency

About this bridge

South Bank Road over Gaddis Creek is a steel culvert carrying South Bank Road over Gaddis Creek in Grays Harbor 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 832 vehicles a day, roughly 21% of them trucks, projected to reach 1,015 by 2043. The structure is 21 ft (6.3 m) long. If it were closed, the detour would be 19.3 mi (31 km).

CarriesSouth Bank Road
CrossesGaddis Creek
Location0.53 S JCT 96540
RouteCounty Highway 96411
Coordinates46.93175, -123.32694
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating58.5 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHL 93
Structure length21 ft (6.3 m)
Longest span21 ft (6.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic832 (2023)
Projected traffic1,015 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.3 mi (31 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$1.1 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was South Bank Road over Gaddis Creek built?

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

What condition is South Bank Road over Gaddis 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 South Bank Road over Gaddis Creek carry?

About 832 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is South Bank Road over Gaddis Creek?

The structure is 21 ft (6.3 m) long with a longest span of 21 ft (6.3 m).

Who owns South Bank Road over Gaddis Creek?

It is owned by the County Highway Agency.