US Bridges

Egan Drive over Vanderbilt Creek

Good

Juneau City and Borough, Alaska · Mile Point 4.9 · Structure no. 4064

Built
1973
52 years old
Condition
Good
inspected June 2023
Type
Culvert
Steel
Length
31 ft
2 main spans
Daily traffic
17,000
2020 count
Owner
State
State Highway Agency

About this bridge

Egan Drive over Vanderbilt Creek is a steel culvert carrying Egan Drive over Vanderbilt Creek in Juneau City and Borough, Alaska. It was built in 1973, so it is 52 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 17,000 vehicles a day, roughly 5% of them trucks, projected to reach 21,500 by 2039. The structure is 31 ft (9.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesEgan Drive
CrossesVanderbilt Creek
LocationMile Point 4.9
RouteState Highway 93
StateAlaska
Coordinates58.3457, -134.501
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length31 ft (9.5 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,000 (2020)
Projected traffic21,500 by 2039
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Egan Drive over Vanderbilt Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is Egan Drive over Vanderbilt 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 June 2023.

How much traffic does Egan Drive over Vanderbilt Creek carry?

About 17,000 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Egan Drive over Vanderbilt Creek?

The structure is 31 ft (9.5 m) long with a longest span of 13 ft (4 m).

Who owns Egan Drive over Vanderbilt Creek?

It is owned by the State Highway Agency.