US Bridges

Copper River HWY over Million Dollar Bridge

PoorClosed to traffic

County 063, Alaska · Mile Point 48.8 · Structure no. 0206

Built
1910
115 years old, rebuilt 2005
Condition
Poor
inspected September 2024
Type
Truss - Thru
Steel
Length
1,567 ft
4 main spans
Daily traffic
65
2011 count
Owner
State
State Highway Agency

About this bridge

Copper River HWY over Million Dollar Bridge is a steel truss - thru carrying Copper River HWY over Million Dollar Bridge in County 063, Alaska. It was built in 1910 and reconstructed in 2005, so it is 115 years old, older than the Alaska average of 35.9 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. Its operating status is: closed to all traffic.

It carries about 65 vehicles a day, roughly 1% of them trucks, projected to reach 150 by 2030. The structure is 1,567 ft (477.5 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesCopper River HWY
CrossesMillion Dollar Bridge
LocationMile Point 48.8
RouteState Highway 851
StateAlaska
Coordinates60.67308, -144.74587
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating25.6 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length1,567 ft (477.5 m)
Longest span450 ft (137.2 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic65 (2011)
Projected traffic150 by 2030
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$16 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Copper River HWY over Million Dollar Bridge built?

It was built in 1910, making it 115 years old in 2025. It was reconstructed in 2005.

What condition is Copper River HWY over Million Dollar Bridge 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 September 2024.

How much traffic does Copper River HWY over Million Dollar Bridge carry?

About 65 vehicles per day (2011 count), of which roughly 1% are trucks.

How long is Copper River HWY over Million Dollar Bridge?

The structure is 1,567 ft (477.5 m) long with a longest span of 450 ft (137.2 m) and a deck 20 ft wide.

Who owns Copper River HWY over Million Dollar Bridge?

It is owned by the State Highway Agency.