US Bridges

NH132 over Winnipesaukee River

Good

Merrimack County, New Hampshire · Northfield-Tilton Tl · Structure no. 019600970014700

Built
1960
65 years old, rebuilt 2001
Condition
Good
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
95 ft
2 main spans
Daily traffic
4,904
2023 count
Owner
State
State Highway Agency

About this bridge

NH132 over Winnipesaukee River is a steel continuous stringer/multi-beam or girder carrying NH132 over Winnipesaukee River in Merrimack County, New Hampshire. It was built in 1960 and reconstructed in 2001, so it is 65 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 4,904 vehicles a day, roughly 10% of them trucks, projected to reach 7,257 by 2043. The structure is 95 ft (29 m) long and 50 ft wide. If it were closed, the detour would be 18 mi (29 km).

Location

Open in Google Maps
CarriesNH132
CrossesWinnipesaukee River
LocationNorthfield-Tilton Tl
RouteState Highway 132
CountyMerrimack County
StateNew Hampshire
Coordinates43.44298, -71.59198
Functional classUrban Collector

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 inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating79 US tons
Inventory rating46.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length95 ft (29 m)
Longest span47 ft (14.3 m)
Deck width50 ft (15.2 m)
Roadway width36 ft (11.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,904 (2023)
Projected traffic7,257 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 NH132 over Winnipesaukee River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is NH132 over Winnipesaukee River 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 2023.

How much traffic does NH132 over Winnipesaukee River carry?

About 4,904 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NH132 over Winnipesaukee River?

The structure is 95 ft (29 m) long with a longest span of 47 ft (14.3 m) and a deck 50 ft wide.

Who owns NH132 over Winnipesaukee River?

It is owned by the State Highway Agency.