US Bridges

NH127 over Warner River

Poor

Merrimack County, New Hampshire · .5 MI Webster T.L. · Structure no. 026302540018000

Built
1937
88 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
123 ft
3 main spans
Daily traffic
1,581
2023 count
Owner
State
State Highway Agency

About this bridge

NH127 over Warner River is a steel continuous stringer/multi-beam or girder carrying NH127 over Warner River in Merrimack County, New Hampshire. It was built in 1937, so it is 88 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: open, would be posted or closed except for temporary shoring.

It carries about 1,581 vehicles a day, roughly 4% of them trucks, projected to reach 2,339 by 2043. The structure is 123 ft (37.5 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNH127
CrossesWarner River
Location.5 MI Webster T.L.
RouteState Highway 127
Coordinates43.25101, -71.73266
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 8 months
Operating statusOpen, would be posted or closed except for temporary shoring
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27.4 US tons
Inventory rating16.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length123 ft (37.5 m)
Longest span60 ft (18.3 m)
Deck width28 ft (8.6 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,581 (2023)
Projected traffic2,339 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 NH127 over Warner River built?

It was built in 1937, making it 88 years old in 2025.

What condition is NH127 over Warner River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does NH127 over Warner River carry?

About 1,581 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH127 over Warner River?

The structure is 123 ft (37.5 m) long with a longest span of 60 ft (18.3 m) and a deck 28 ft wide.

Who owns NH127 over Warner River?

It is owned by the State Highway Agency.