US Bridges

Kelley Street over Piscataquog R CSX RD

Good

Hillsborough County, New Hampshire · 0.3 MI E JCT RTE 114-A · Structure no. 016101190004500

Built
1973
52 years old, rebuilt 2012
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
908 ft
5 main spans
Daily traffic
11,356
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Kelley Street over Piscataquog R CSX RD is a steel continuous stringer/multi-beam or girder carrying Kelley Street over Piscataquog R CSX RD in Hillsborough County, New Hampshire. It was built in 1973 and reconstructed in 2012, so it is 52 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 11,356 vehicles a day, roughly 5% of them trucks, projected to reach 16,806 by 2043. The structure is 908 ft (276.8 m) long and 47 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesKelley Street
CrossesPiscataquog R CSX RD
Location0.3 MI E JCT RTE 114-A
RouteCity Street 0
Coordinates42.99301, -71.49559
Functional classUrban Minor Arterial

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 protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75 US tons
Inventory rating45 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans5
Design loadHS 25 or greater
Structure length908 ft (276.8 m)
Longest span190 ft (57.9 m)
Deck width47 ft (14.3 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,356 (2023)
Projected traffic16,806 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed3.1 mi (5 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 Kelley Street over Piscataquog R CSX RD built?

It was built in 1973, making it 52 years old in 2025. It was reconstructed in 2012.

What condition is Kelley Street over Piscataquog R CSX RD 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 July 2024.

How much traffic does Kelley Street over Piscataquog R CSX RD carry?

About 11,356 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Kelley Street over Piscataquog R CSX RD?

The structure is 908 ft (276.8 m) long with a longest span of 190 ft (57.9 m) and a deck 47 ft wide.

Who owns Kelley Street over Piscataquog R CSX RD?

It is owned by the City or Municipal Highway Agency.