US Bridges

Langford Road over Lamprey River

Good

Rockingham County, New Hampshire · 0.2 MI SW JCT 101 · Structure no. 021901060012200

Built
1964
61 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
1,255
2023 count
Owner
State
State Highway Agency

About this bridge

Langford Road over Lamprey River is a steel stringer/multi-beam or girder carrying Langford Road over Lamprey River in Rockingham County, New Hampshire. It was built in 1964, so it is 61 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 1,255 vehicles a day, roughly 4% of them trucks, projected to reach 1,857 by 2043. The structure is 69 ft (21 m) long and 27 ft wide.

CarriesLangford Road
CrossesLamprey River
Location0.2 MI SW JCT 101
RouteState Highway 0
Coordinates43.04146, -71.20165
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 protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating32.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length69 ft (21 m)
Longest span65 ft (19.8 m)
Deck width27 ft (8.2 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,255 (2023)
Projected traffic1,857 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 Langford Road over Lamprey River built?

It was built in 1964, making it 61 years old in 2025.

What condition is Langford 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 April 2024.

How much traffic does Langford Road over Lamprey River carry?

About 1,255 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Langford Road over Lamprey River?

The structure is 69 ft (21 m) long with a longest span of 65 ft (19.8 m) and a deck 27 ft wide.

Who owns Langford Road over Lamprey River?

It is owned by the State Highway Agency.