US Bridges

Grandpas Farm RD over Harry Hall Creek

Good

Hoonah-Angoon Census Area, Alaska · Mile Point 0.1 · Structure no. 2393

Built
2022
3 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
60 ft
1 main span
Daily traffic
10
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Grandpas Farm RD over Harry Hall Creek is a wood or timber stringer/multi-beam or girder carrying Grandpas Farm RD over Harry Hall Creek in Hoonah-Angoon Census Area, Alaska. It was built in 2022, so it is 3 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 5 by 2037. The structure is 60 ft (18.4 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesGrandpas Farm RD
CrossesHarry Hall Creek
LocationMile Point 0.1
RouteCity Street 0
StateAlaska
Coordinates58.41153, -135.76587
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
Deck9 ExcellentNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating38.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length60 ft (18.4 m)
Longest span56 ft (17.1 m)
Deck width19 ft (5.8 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2022)
Projected traffic5 by 2037
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 Grandpas Farm RD over Harry Hall Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is Grandpas Farm RD over Harry Hall 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 May 2023.

How much traffic does Grandpas Farm RD over Harry Hall Creek carry?

About 10 vehicles per day (2022 count), of which roughly 1% are trucks.

How long is Grandpas Farm RD over Harry Hall Creek?

The structure is 60 ft (18.4 m) long with a longest span of 56 ft (17.1 m) and a deck 19 ft wide.

Who owns Grandpas Farm RD over Harry Hall Creek?

It is owned by the City or Municipal Highway Agency.