US Bridges

Barendse RD over Blind Slough

Fair

Clatsop County, Oregon · 001 MI N Road JCT · Structure no. 11138A021000200

Built
1972
53 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
444 ft
15 main spans
Daily traffic
282
2020 count
Owner
County
County Highway Agency

About this bridge

Barendse RD over Blind Slough is a prestressed concrete slab carrying Barendse RD over Blind Slough in Clatsop County, Oregon. It was built in 1972, so it is 53 years old, older than the Oregon average of 49.9 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 282 vehicles a day, roughly 10% of them trucks, projected to reach 342 by 2025. The structure is 444 ft (135.3 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesBarendse RD
CrossesBlind Slough
Location001 MI N Road JCT
RouteCounty Highway A0736
CountyClatsop County
StateOregon
Coordinates46.20253, -123.54244
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating70.3 US tons
Inventory rating54.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans15
Design loadUnknown
Structure length444 ft (135.3 m)
Longest span50 ft (15.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2020)
Projected traffic342 by 2025
Trucks10%
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 statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Barendse RD over Blind Slough built?

It was built in 1972, making it 53 years old in 2025.

What condition is Barendse RD over Blind Slough 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 April 2023.

How much traffic does Barendse RD over Blind Slough carry?

About 282 vehicles per day (2020 count), of which roughly 10% are trucks.

How long is Barendse RD over Blind Slough?

The structure is 444 ft (135.3 m) long with a longest span of 50 ft (15.2 m) and a deck 32 ft wide.

Who owns Barendse RD over Blind Slough?

It is owned by the County Highway Agency.