US Bridges

Depot Street over Relief

Good

Hillsborough County, New Hampshire · 0.2MI Bennington Tl · Structure no. 000901810007100

Built
1914
111 years old, rebuilt 2013
Condition
Good
inspected June 2024
Type
Slab
Concrete
Length
32 ft
1 main span
Daily traffic
1,065
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Depot Street over Relief is a concrete slab carrying Depot Street over Relief in Hillsborough County, New Hampshire. It was built in 1914 and reconstructed in 2013, so it is 111 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 1,065 vehicles a day, roughly 4% of them trucks, projected to reach 1,576 by 2043. The structure is 32 ft (9.8 m) long and 21 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesDepot Street
CrossesRelief
Location0.2MI Bennington Tl
Coordinates43.02556, -71.93076
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.6 US tons
Inventory rating53.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width21 ft (6.4 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,065 (2023)
Projected traffic1,576 by 2043
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Depot Street over Relief built?

It was built in 1914, making it 111 years old in 2025. It was reconstructed in 2013.

What condition is Depot Street over Relief 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 Depot Street over Relief carry?

About 1,065 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Depot Street over Relief?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 21 ft wide.

Who owns Depot Street over Relief?

It is owned by the City or Municipal Highway Agency.