US Bridges

Sand Lake Road over Sand Creek

Fair

Tillamook County, Oregon · 4.0 MI SE Cape Lookout Pk · Structure no. 57C62 871 00038

Built
1978
47 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
26 ft
1 main span
Daily traffic
1,273
2020 count
Owner
County
County Highway Agency

About this bridge

Sand Lake Road over Sand Creek is a prestressed concrete slab carrying Sand Lake Road over Sand Creek in Tillamook County, Oregon. It was built in 1978, so it is 47 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 1,273 vehicles a day, roughly 15% of them trucks, projected to reach 1,513 by 2025. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 20.5 mi (33 km).

Location

Open in Google Maps
CarriesSand Lake Road
CrossesSand Creek
Location4.0 MI SE Cape Lookout Pk
RouteCounty Highway A0721
CountyTillamook County
StateOregon
Coordinates45.31815, -123.91608
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 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 rating89.9 US tons
Inventory rating53 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,273 (2020)
Projected traffic1,513 by 2025
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 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 Sand Lake Road over Sand Creek built?

It was built in 1978, making it 47 years old in 2025.

What condition is Sand Lake Road over Sand 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 June 2023.

How much traffic does Sand Lake Road over Sand Creek carry?

About 1,273 vehicles per day (2020 count), of which roughly 15% are trucks.

How long is Sand Lake Road over Sand Creek?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.

Who owns Sand Lake Road over Sand Creek?

It is owned by the County Highway Agency.