US Bridges

Second Street over Piscataquog (north Br)

Fair

Hillsborough County, New Hampshire · 0.2 MI N Queen City Brdge · Structure no. 016101410006600

Built
1915
110 years old, rebuilt 1970
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
1 main span
Daily traffic
5,707
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Second Street over Piscataquog (north Br) is a steel stringer/multi-beam or girder carrying Second Street over Piscataquog (north Br) in Hillsborough County, New Hampshire. It was built in 1915 and reconstructed in 1970, so it is 110 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,707 vehicles a day, roughly 5% of them trucks, projected to reach 8,446 by 2043. The structure is 90 ft (27.4 m) long and 50 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSecond Street
CrossesPiscataquog (north Br)
Location0.2 MI N Queen City Brdge
RouteCity Street 0
Coordinates42.97874, -71.47276
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation6: Equal to 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 rating90.2 US tons
Inventory rating54 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length90 ft (27.4 m)
Longest span82 ft (25 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,707 (2023)
Projected traffic8,446 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 Second Street over Piscataquog (north Br) built?

It was built in 1915, making it 110 years old in 2025. It was reconstructed in 1970.

What condition is Second Street over Piscataquog (north Br) in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Second Street over Piscataquog (north Br) carry?

About 5,707 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Second Street over Piscataquog (north Br)?

The structure is 90 ft (27.4 m) long with a longest span of 82 ft (25 m) and a deck 50 ft wide.

Who owns Second Street over Piscataquog (north Br)?

It is owned by the City or Municipal Highway Agency.