US Bridges

Elk Creek Road over S Fk Coquille River

Poor

Coos County, Oregon · 16MI S & 6MI E of 97466 · Structure no. 061105000001103

Built
1950
75 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Concrete Continuous
Length
121 ft
3 main spans
Daily traffic
50
Owner
Federal
U.S. Forest Service

About this bridge

Elk Creek Road over S Fk Coquille River is a concrete continuous stringer/multi-beam or girder carrying Elk Creek Road over S Fk Coquille River in Coos County, Oregon. It was built in 1950, so it is 75 years old, older than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 50 vehicles a day, projected to reach 75 by 2045. The structure is 121 ft (36.9 m) long and 18 ft wide. If it were closed, the detour would be 620.7 mi (999 km).

Location

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CarriesElk Creek Road
CrossesS Fk Coquille River
Location16MI S & 6MI E of 97466
RouteFederal Lands Road 33580
CountyCoos County
StateOregon
Coordinates42.74592, -123.99817
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating39 US tons
Inventory rating23 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length121 ft (36.9 m)
Longest span70 ft (21.3 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (—)
Projected traffic75 by 2045
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Elk Creek Road over S Fk Coquille River built?

It was built in 1950, making it 75 years old in 2025.

What condition is Elk Creek Road over S Fk Coquille River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2023.

How much traffic does Elk Creek Road over S Fk Coquille River carry?

About 50 vehicles per day (latest count).

How long is Elk Creek Road over S Fk Coquille River?

The structure is 121 ft (36.9 m) long with a longest span of 70 ft (21.3 m) and a deck 18 ft wide.

Who owns Elk Creek Road over S Fk Coquille River?

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