US Bridges

Agness Road over Ground Depression-Bluff

Good

Curry County, Oregon · 15 MI NE HWY 101 @97444 · Structure no. 061103000001134

Built
1971
54 years old
Condition
Good
inspected July 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
161 ft
1 main span
Daily traffic
212
1995 count
Owner
Federal
U.S. Forest Service

About this bridge

Agness Road over Ground Depression-Bluff is a prestressed concrete stringer/multi-beam or girder carrying Agness Road over Ground Depression-Bluff in Curry County, Oregon. It was built in 1971, so it is 54 years old, older 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 212 vehicles a day, roughly 15% of them trucks, projected to reach 318 by 2045. The structure is 161 ft (49.1 m) long and 31 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

CarriesAgness Road
CrossesGround Depression-Bluff
Location15 MI NE HWY 101 @97444
RouteFederal Lands Road 33000
StateOregon
Coordinates42.489, -124.20864
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.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55 US tons
Inventory rating38 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 25 or greater
Structure length161 ft (49.1 m)
Longest span60 ft (18.3 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic212 (1995)
Projected traffic318 by 2045
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed620.7 mi (999 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Agness Road over Ground Depression-Bluff built?

It was built in 1971, making it 54 years old in 2025.

What condition is Agness Road over Ground Depression-Bluff 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 July 2021.

How much traffic does Agness Road over Ground Depression-Bluff carry?

About 212 vehicles per day (1995 count), of which roughly 15% are trucks.

How long is Agness Road over Ground Depression-Bluff?

The structure is 161 ft (49.1 m) long with a longest span of 60 ft (18.3 m) and a deck 31 ft wide.

Who owns Agness Road over Ground Depression-Bluff?

It is owned by the U.S. Forest Service.