US Bridges

Lower Nehalem RD over Spruce Run Creek

Fair

Clatsop County, Oregon · At Spruce Run County Park · Structure no. 11242 140400548

Built
1987
38 years old
Condition
Fair
inspected April 2023
Type
Slab
Prestressed Concrete
Length
49 ft
1 main span
Daily traffic
28
2020 count
Owner
County
County Highway Agency

About this bridge

Lower Nehalem RD over Spruce Run Creek is a prestressed concrete slab carrying Lower Nehalem RD over Spruce Run Creek in Clatsop County, Oregon. It was built in 1987, so it is 38 years old, younger 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 5 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 28 vehicles a day, projected to reach 28 by 2025. The structure is 49 ft (14.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLower Nehalem RD
CrossesSpruce Run Creek
LocationAt Spruce Run County Park
RouteCounty Highway A0727
CountyClatsop County
StateOregon
Coordinates45.81126, -123.61163
Functional classRural Major 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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length49 ft (14.9 m)
Longest span48 ft (14.6 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic28 (2020)
Projected traffic28 by 2025
Trucks0%
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 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 Lower Nehalem RD over Spruce Run Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Lower Nehalem RD over Spruce Run 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 April 2023.

How much traffic does Lower Nehalem RD over Spruce Run Creek carry?

About 28 vehicles per day (2020 count).

How long is Lower Nehalem RD over Spruce Run Creek?

The structure is 49 ft (14.9 m) long with a longest span of 48 ft (14.6 m) and a deck 24 ft wide.

Who owns Lower Nehalem RD over Spruce Run Creek?

It is owned by the County Highway Agency.