US Bridges

Coffman Cove Road over Hatchery CR Tributary

Good

Prince of Wales-Hyder Census Area, Alaska · Mile Point 9.6 · Structure no. 2129

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

About this bridge

Coffman Cove Road over Hatchery CR Tributary is a prestressed concrete tee beam carrying Coffman Cove Road over Hatchery CR Tributary 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 94 ft (28.5 m) long and 38 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCoffman Cove Road
CrossesHatchery CR Tributary
LocationMile Point 9.6
RouteState Highway 0
StateAlaska
Coordinates55.90944, -132.92083
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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
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 geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating96.7 US tons
Inventory rating44.5 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHL 93
Structure length94 ft (28.5 m)
Longest span89 ft (27 m)
Deck width38 ft (11.5 m)
Roadway width34 ft (10.5 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 Hatchery CR Tributary built?

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

What condition is Coffman Cove Road over Hatchery CR Tributary 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 Hatchery CR Tributary carry?

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

How long is Coffman Cove Road over Hatchery CR Tributary?

The structure is 94 ft (28.5 m) long with a longest span of 89 ft (27 m) and a deck 38 ft wide.

Who owns Coffman Cove Road over Hatchery CR Tributary?

It is owned by the State Highway Agency.