US Bridges

Spruce Lane over Spruce Lane Bridge

Good

Hoonah-Angoon Census Area, Alaska · Mile Point 0.1 · Structure no. 2310

Built
2014
11 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
40 ft
1 main span
Daily traffic
10
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Spruce Lane over Spruce Lane Bridge is a wood or timber stringer/multi-beam or girder carrying Spruce Lane over Spruce Lane Bridge in Hoonah-Angoon Census Area, Alaska. It was built in 2014, so it is 11 years old, younger 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 10 vehicles a day, roughly 1% of them trucks, projected to reach 14 by 2035. The structure is 40 ft (12.2 m) long and 20 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesSpruce Lane
CrossesSpruce Lane Bridge
LocationMile Point 0.1
RouteCity Street 0
CountyHoonah-Angoon Census Area
StateAlaska
Coordinates58.42347, -135.75729
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating51.9 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span35 ft (10.7 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2018)
Projected traffic14 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 Spruce Lane over Spruce Lane Bridge built?

It was built in 2014, making it 11 years old in 2025.

What condition is Spruce Lane over Spruce Lane Bridge 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 May 2023.

How much traffic does Spruce Lane over Spruce Lane Bridge carry?

About 10 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Spruce Lane over Spruce Lane Bridge?

The structure is 40 ft (12.2 m) long with a longest span of 35 ft (10.7 m) and a deck 20 ft wide.

Who owns Spruce Lane over Spruce Lane Bridge?

It is owned by the City or Municipal Highway Agency.