US Bridges

Coffman Cove Road over Coffman Creek

Good

Prince of Wales-Hyder Census Area, Alaska · Mile Point 17.1 · Structure no. 2282

Built
2006
19 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
80 ft
1 main span
Daily traffic
120
2020 count
Owner
State
State Highway Agency

About this bridge

Coffman Cove Road over Coffman Creek is a prestressed concrete tee beam carrying Coffman Cove Road over Coffman Creek in Prince of Wales-Hyder Census Area, Alaska. It was built in 2006, so it is 19 years old, younger than the Alaska average of 35.9 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 120 vehicles a day, roughly 21% of them trucks, projected to reach 290 by 2039. The structure is 80 ft (24.4 m) long and 30 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCoffman Cove Road
CrossesCoffman Creek
LocationMile Point 17.1
RouteState Highway 0
StateAlaska
Coordinates55.9921, -132.8714
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating65 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length80 ft (24.4 m)
Longest span78 ft (23.8 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic120 (2020)
Projected traffic290 by 2039
Trucks21%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Coffman Cove Road over Coffman Creek built?

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

What condition is Coffman Cove Road over Coffman 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 July 2023.

How much traffic does Coffman Cove Road over Coffman Creek carry?

About 120 vehicles per day (2020 count), of which roughly 21% are trucks.

How long is Coffman Cove Road over Coffman Creek?

The structure is 80 ft (24.4 m) long with a longest span of 78 ft (23.8 m) and a deck 30 ft wide.

Who owns Coffman Cove Road over Coffman Creek?

It is owned by the State Highway Agency.