US Bridges

Basin Road over Gold Creek

Fair

Juneau City and Borough, Alaska · Mile Point 0.6 · Structure no. 0949

Built
1938
87 years old, rebuilt 1976
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
108 ft
1 main span
Daily traffic
280
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Basin Road over Gold Creek is a steel girder and floorbeam system carrying Basin Road over Gold Creek in Juneau City and Borough, Alaska. It was built in 1938 and reconstructed in 1976, so it is 87 years old, older than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 280 vehicles a day, roughly 1% of them trucks, projected to reach 336 by 2035. The structure is 108 ft (32.9 m) long and 22 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesBasin Road
CrossesGold Creek
LocationMile Point 0.6
CountyJuneau City and Borough
StateAlaska
Coordinates58.30722, -134.4025
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating64.2 US tons
Inventory rating29.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 10
Structure length108 ft (32.9 m)
Longest span100 ft (30.5 m)
Deck width22 ft (6.7 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic280 (2018)
Projected traffic336 by 2035
Trucks1%
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

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Basin Road over Gold Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1976.

What condition is Basin Road over Gold Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.

How much traffic does Basin Road over Gold Creek carry?

About 280 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Basin Road over Gold Creek?

The structure is 108 ft (32.9 m) long with a longest span of 100 ft (30.5 m) and a deck 22 ft wide.

Who owns Basin Road over Gold Creek?

It is owned by the City or Municipal Highway Agency.