US Bridges

Agness Road over Coal Creek

Good

Coos County, Oregon · 5 Miles S. of Powers or · Structure no. 061028000025255

Built
2016
9 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
124 ft
1 main span
Daily traffic
200
2016 count
Owner
Federal
U.S. Forest Service

About this bridge

Agness Road over Coal Creek is a prestressed concrete stringer/multi-beam or girder carrying Agness Road over Coal Creek in Coos County, Oregon. It was built in 2016, so it is 9 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 200 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2045. The structure is 124 ft (37.9 m) long and 33 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

CarriesAgness Road
CrossesCoal Creek
Location5 Miles S. of Powers or
RouteFederal Lands Road 33000
StateOregon
Coordinates42.81681, -124.01303
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating51 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length124 ft (37.9 m)
Longest span122 ft (37.2 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2016)
Projected traffic300 by 2045
Trucks10%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 Coal Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Agness Road over Coal Creek 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 August 2023.

How much traffic does Agness Road over Coal Creek carry?

About 200 vehicles per day (2016 count), of which roughly 10% are trucks.

How long is Agness Road over Coal Creek?

The structure is 124 ft (37.9 m) long with a longest span of 122 ft (37.2 m) and a deck 33 ft wide.

Who owns Agness Road over Coal Creek?

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