US Bridges

Egan Drive over Lemon Creek - S.B.

Fair

Juneau City and Borough, Alaska · Mile Point 38.0 · Structure no. 1863

Built
1973
52 years old
Condition
Fair
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
181 ft
3 main spans
Daily traffic
8,500
2020 count
Owner
State
State Highway Agency

About this bridge

Egan Drive over Lemon Creek - S.B. is a prestressed concrete tee beam carrying Egan Drive over Lemon Creek - S.B. 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 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 8,500 vehicles a day, roughly 5% of them trucks, projected to reach 10,750 by 2039. The structure is 181 ft (55.2 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesEgan Drive
CrossesLemon Creek - S.B.
LocationMile Point 38.0
RouteState Highway 93
CountyJuneau City and Borough
StateAlaska
Coordinates58.3506, -134.5082
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.1 US tons
Inventory rating45 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length181 ft (55.2 m)
Longest span60 ft (18.3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,500 (2020)
Projected traffic10,750 by 2039
Trucks5%
Lanes on structure2
Traffic directionOne-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 Lemon Creek - S.B. built?

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

What condition is Egan Drive over Lemon Creek - S.B. 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 Egan Drive over Lemon Creek - S.B. carry?

About 8,500 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Egan Drive over Lemon Creek - S.B.?

The structure is 181 ft (55.2 m) long with a longest span of 60 ft (18.3 m) and a deck 43 ft wide.

Who owns Egan Drive over Lemon Creek - S.B.?

It is owned by the State Highway Agency.