US Bridges

Whalen Island Road over Sand Lake

Good

Tillamook County, Oregon · At Ent Whalen Island Park · Structure no. 22545 874 00010

Built
2018
7 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
84
2020 count
Owner
County
County Highway Agency

About this bridge

Whalen Island Road over Sand Lake is a prestressed concrete slab carrying Whalen Island Road over Sand Lake in Tillamook County, Oregon. It was built in 2018, so it is 7 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 84 vehicles a day, projected to reach 99 by 2025. The structure is 78 ft (23.8 m) long and 34 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesWhalen Island Road
CrossesSand Lake
LocationAt Ent Whalen Island Park
RouteCounty Highway C0874
StateOregon
Coordinates45.27342, -123.947
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating46.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length78 ft (23.8 m)
Longest span78 ft (23.8 m)
Deck width34 ft (10.3 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic84 (2020)
Projected traffic99 by 2025
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 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 Whalen Island Road over Sand Lake built?

It was built in 2018, making it 7 years old in 2025.

What condition is Whalen Island Road over Sand Lake 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 June 2023.

How much traffic does Whalen Island Road over Sand Lake carry?

About 84 vehicles per day (2020 count).

How long is Whalen Island Road over Sand Lake?

The structure is 78 ft (23.8 m) long with a longest span of 78 ft (23.8 m) and a deck 34 ft wide.

Who owns Whalen Island Road over Sand Lake?

It is owned by the County Highway Agency.