US Bridges

Prescott Road over Salmon Brook

Fair

Belknap County, New Hampshire · 250FT. Rte. 127 · Structure no. 023101100006500

Built
1969
56 years old
Condition
Fair
inspected October 2023
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
1,287
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prescott Road over Salmon Brook is a steel culvert carrying Prescott Road over Salmon Brook in Belknap County, New Hampshire. It was built in 1969, so it is 56 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 fair condition with a lowest component rating of 5 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 1,287 vehicles a day, roughly 4% of them trucks, projected to reach 1,904 by 2043. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesPrescott Road
CrossesSalmon Brook
Location250FT. Rte. 127
CountyBelknap County
StateNew Hampshire
Coordinates43.49788, -71.63131
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating37.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span25 ft (7.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,287 (2023)
Projected traffic1,904 by 2043
Trucks4%
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

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 Prescott Road over Salmon Brook built?

It was built in 1969, making it 56 years old in 2025.

What condition is Prescott Road over Salmon Brook 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 October 2023.

How much traffic does Prescott Road over Salmon Brook carry?

About 1,287 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Prescott Road over Salmon Brook?

The structure is 25 ft (7.6 m) long with a longest span of 25 ft (7.6 m).

Who owns Prescott Road over Salmon Brook?

It is owned by the City or Municipal Highway Agency.