US Bridges

Bradford Street over Tributary G

Good

Rockingham County, New Hampshire · Derry · Structure no. 006300770008900

Built
2006
19 years old
Condition
Good
inspected September 2024
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
856
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bradford Street over Tributary G is a concrete frame carrying Bradford Street over Tributary G in Rockingham County, New Hampshire. It was built in 2006, so it is 19 years old, younger 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 856 vehicles a day, roughly 4% of them trucks, projected to reach 1,266 by 2043. The structure is 23 ft (7 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBradford Street
CrossesTributary G
LocationDerry
RouteCity Street 0
Coordinates42.87503, -71.31003
Functional classUrban 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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating76.3 US tons
Inventory rating45.7 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length23 ft (7 m)
Longest span20 ft (6.1 m)
Deck width33 ft (10.1 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic856 (2023)
Projected traffic1,266 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 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 Bradford Street over Tributary G built?

It was built in 2006, making it 19 years old in 2025.

What condition is Bradford Street over Tributary G 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 September 2024.

How much traffic does Bradford Street over Tributary G carry?

About 856 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Bradford Street over Tributary G?

The structure is 23 ft (7 m) long with a longest span of 20 ft (6.1 m) and a deck 33 ft wide.

Who owns Bradford Street over Tributary G?

It is owned by the City or Municipal Highway Agency.