US Bridges

Ocean Beach Road over Berg Slough

Poor

Grays Harbor County, Washington · 06.9 NW JCT US 101 · Structure no. 080071000000000

Built
1964
61 years old
Condition
Poor
inspected February 2024
Type
Channel Beam
Concrete
Length
62 ft
3 main spans
Daily traffic
2,622
2023 count
Owner
County
County Highway Agency

About this bridge

Ocean Beach Road over Berg Slough is a concrete channel beam carrying Ocean Beach Road over Berg Slough in Grays Harbor County, Washington. It was built in 1964, so it is 61 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,622 vehicles a day, roughly 21% of them trucks, projected to reach 3,199 by 2043. The structure is 62 ft (18.9 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesOcean Beach Road
CrossesBerg Slough
Location06.9 NW JCT US 101
RouteCounty Highway 94230
CountyGrays Harbor County
StateWashington
Coordinates47.07199, -124.04358
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating24 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHS 15
Structure length62 ft (18.9 m)
Longest span20 ft (6.1 m)
Deck width28 ft (8.6 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,622 (2023)
Projected traffic3,199 by 2043
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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$2.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ocean Beach Road over Berg Slough built?

It was built in 1964, making it 61 years old in 2025.

What condition is Ocean Beach Road over Berg Slough in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in February 2024.

How much traffic does Ocean Beach Road over Berg Slough carry?

About 2,622 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is Ocean Beach Road over Berg Slough?

The structure is 62 ft (18.9 m) long with a longest span of 20 ft (6.1 m) and a deck 28 ft wide.

Who owns Ocean Beach Road over Berg Slough?

It is owned by the County Highway Agency.