US Bridges

Distin Street over Distin ST Viaduct at 8th

Fair

Juneau City and Borough, Alaska · Juneau · Structure no. 2135

Built
1992
33 years old
Condition
Fair
inspected June 2023
Type
Slab
Prestressed Concrete
Length
92 ft
23 main spans
Daily traffic
20
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Distin Street over Distin ST Viaduct at 8th is a prestressed concrete slab carrying Distin Street over Distin ST Viaduct at 8th in Juneau City and Borough, Alaska. It was built in 1992, so it is 33 years old, younger 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 20 vehicles a day, roughly 1% of them trucks, projected to reach 25 by 2035. The structure is 92 ft (28 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesDistin Street
CrossesDistin ST Viaduct at 8th
LocationJuneau
RouteCity Street 0
StateAlaska
Coordinates58.3023, -134.4168
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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
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
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating63.7 US tons
Inventory rating22.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans23
Design loadHS 20
Structure length92 ft (28 m)
Longest span18 ft (5.5 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic25 by 2035
Trucks1%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesOther
Detour if closed1.2 mi (2 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Distin Street over Distin ST Viaduct at 8th built?

It was built in 1992, making it 33 years old in 2025.

What condition is Distin Street over Distin ST Viaduct at 8th 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 Distin Street over Distin ST Viaduct at 8th carry?

About 20 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Distin Street over Distin ST Viaduct at 8th?

The structure is 92 ft (28 m) long with a longest span of 18 ft (5.5 m) and a deck 20 ft wide.

Who owns Distin Street over Distin ST Viaduct at 8th?

It is owned by the City or Municipal Highway Agency.