US Bridges

NH101 WB over I-95

Good

Rockingham County, New Hampshire · Hampton · Structure no. 011101120018000

Built
2000
25 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
343 ft
2 main spans
Daily traffic
9,431
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

NH101 WB over I-95 is a steel continuous stringer/multi-beam or girder carrying NH101 WB over I-95 in Rockingham County, New Hampshire. It was built in 2000, so it is 25 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 9,431 vehicles a day, roughly 6% of them trucks, projected to reach 13,957 by 2043. The structure is 343 ft (104.5 m) long and 64 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesNH101 WB
CrossesI-95
LocationHampton
RouteInterstate 101
CountyRockingham County
StateNew Hampshire
Coordinates42.9597, -70.85684
Functional classUrban Other Principal 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.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment9: Superior to present desirable criteria
Operating rating95 US tons
Inventory rating56.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length343 ft (104.5 m)
Longest span175 ft (53.2 m)
Deck width64 ft (19.4 m)
Roadway width60 ft (18.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,431 (2023)
Projected traffic13,957 by 2043
Trucks6%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 NH101 WB over I-95 built?

It was built in 2000, making it 25 years old in 2025.

What condition is NH101 WB over I-95 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 May 2023.

How much traffic does NH101 WB over I-95 carry?

About 9,431 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is NH101 WB over I-95?

The structure is 343 ft (104.5 m) long with a longest span of 175 ft (53.2 m) and a deck 64 ft wide.

Who owns NH101 WB over I-95?

It is owned by the State Toll Authority.