US Bridges

Prescott Road over Lamprey River

Good

Rockingham County, New Hampshire · 0.07 MI FR Riverside DR · Structure no. 021901600009400

Built
1990
35 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
75 ft
1 main span
Daily traffic
838
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Prescott Road over Lamprey River is a steel stringer/multi-beam or girder carrying Prescott Road over Lamprey River in Rockingham County, New Hampshire. It was built in 1990, so it is 35 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 838 vehicles a day, roughly 4% of them trucks, projected to reach 1,240 by 2043. The structure is 75 ft (22.9 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesPrescott Road
CrossesLamprey River
Location0.07 MI FR Riverside DR
CountyRockingham County
StateNew Hampshire
Coordinates43.02251, -71.15095
Functional classUrban Local

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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 alignment7: Better than present minimum criteria
Operating rating61.9 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length75 ft (22.9 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.3 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic838 (2023)
Projected traffic1,240 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
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 Prescott Road over Lamprey River built?

It was built in 1990, making it 35 years old in 2025.

What condition is Prescott Road over Lamprey 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 September 2023.

How much traffic does Prescott Road over Lamprey River carry?

About 838 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Prescott Road over Lamprey River?

The structure is 75 ft (22.9 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Prescott Road over Lamprey River?

It is owned by the City or Municipal Highway Agency.