US Bridges

NH132 over Williams Brook

Good

Merrimack County, New Hampshire · 0.8 MI Tilton Tl · Structure no. 019600980013100

Built
1960
65 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete Continuous
Length
21 ft
2 main spans
Daily traffic
4,841
2023 count
Owner
State
State Highway Agency

About this bridge

NH132 over Williams Brook is a concrete continuous culvert carrying NH132 over Williams Brook in Merrimack County, New Hampshire. It was built in 1960, 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 4,841 vehicles a day, roughly 10% of them trucks, projected to reach 7,164 by 2043. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNH132
CrossesWilliams Brook
Location0.8 MI Tilton Tl
RouteState Highway 132
CountyMerrimack County
StateNew Hampshire
Coordinates43.431, -71.58934
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,841 (2023)
Projected traffic7,164 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Williams Brook built?

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

What condition is NH132 over Williams Brook 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 Williams Brook carry?

About 4,841 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is NH132 over Williams Brook?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m).

Who owns NH132 over Williams Brook?

It is owned by the State Highway Agency.