US Bridges

Epping Street over Lamprey River

Fair

Rockingham County, New Hampshire · 0.3 MI from Nh RTE 107 · Structure no. 021901370011900

Built
1948
77 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
2,826
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Epping Street over Lamprey River is a steel stringer/multi-beam or girder carrying Epping Street over Lamprey River in Rockingham County, New Hampshire. It was built in 1948, so it is 77 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 fair condition with a lowest component rating of 6 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 2,826 vehicles a day, roughly 4% of them trucks, projected to reach 4,182 by 2043. The structure is 45 ft (13.7 m) long and 31 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesEpping Street
CrossesLamprey River
Location0.3 MI from Nh RTE 107
CountyRockingham County
StateNew Hampshire
Coordinates43.03974, -71.17424
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating27 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,826 (2023)
Projected traffic4,182 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 Epping Street over Lamprey River built?

It was built in 1948, making it 77 years old in 2025.

What condition is Epping Street over Lamprey River 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 September 2023.

How much traffic does Epping Street over Lamprey River carry?

About 2,826 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Epping Street over Lamprey River?

The structure is 45 ft (13.7 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns Epping Street over Lamprey River?

It is owned by the City or Municipal Highway Agency.