US Bridges

US302 over Albany Brook

Good

Carroll County, New Hampshire · 1.0 MI from Harts Loc. Tl · Structure no. 001700910009800

Built
1928
97 years old, rebuilt 1994
Condition
Good
inspected June 2024
Type
Slab
Concrete Continuous
Length
40 ft
2 main spans
Daily traffic
2,713
2023 count
Owner
State
State Highway Agency

About this bridge

US302 over Albany Brook is a concrete continuous slab carrying US302 over Albany Brook in Carroll County, New Hampshire. It was built in 1928 and reconstructed in 1994, so it is 97 years old, older than the New Hampshire average of 56.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,713 vehicles a day, roughly 7% of them trucks, projected to reach 4,015 by 2043. The structure is 40 ft (12.2 m) long and 48 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

CarriesUS302
CrossesAlbany Brook
Location1.0 MI from Harts Loc. Tl
RouteU.S. Route 302
Coordinates44.07384, -71.30039
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating92 US tons
Inventory rating55.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length40 ft (12.2 m)
Longest span17 ft (5.2 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,713 (2023)
Projected traffic4,015 by 2043
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed47.8 mi (77 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$314,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US302 over Albany Brook built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1994.

What condition is US302 over Albany Brook 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 2024.

How much traffic does US302 over Albany Brook carry?

About 2,713 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US302 over Albany Brook?

The structure is 40 ft (12.2 m) long with a longest span of 17 ft (5.2 m) and a deck 48 ft wide.

Who owns US302 over Albany Brook?

It is owned by the State Highway Agency.