US Bridges

Sitkum Lane over N. Fork Coquille Rvr

Good

Coos County, Oregon · 0390 Miles E Myrtl Point · Structure no. 20127 001200390

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
441 ft
3 main spans
Daily traffic
1,201
2020 count
Owner
County
County Highway Agency

About this bridge

Sitkum Lane over N. Fork Coquille Rvr is a prestressed concrete continuous stringer/multi-beam or girder carrying Sitkum Lane over N. Fork Coquille Rvr in Coos County, Oregon. It was built in 2006, so it is 19 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 1,201 vehicles a day, roughly 20% of them trucks, projected to reach 1,356 by 2025. The structure is 441 ft (134.4 m) long and 35 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSitkum Lane
CrossesN. Fork Coquille Rvr
Location0390 Miles E Myrtl Point
RouteCounty Highway 0A420
CountyCoos County
StateOregon
Coordinates43.07139, -124.10728
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating81 US tons
Inventory rating49.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length441 ft (134.4 m)
Longest span161 ft (49.1 m)
Deck width35 ft (10.6 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,201 (2020)
Projected traffic1,356 by 2025
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 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 Sitkum Lane over N. Fork Coquille Rvr built?

It was built in 2006, making it 19 years old in 2025.

What condition is Sitkum Lane over N. Fork Coquille Rvr 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 September 2024.

How much traffic does Sitkum Lane over N. Fork Coquille Rvr carry?

About 1,201 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is Sitkum Lane over N. Fork Coquille Rvr?

The structure is 441 ft (134.4 m) long with a longest span of 161 ft (49.1 m) and a deck 35 ft wide.

Who owns Sitkum Lane over N. Fork Coquille Rvr?

It is owned by the County Highway Agency.