US Bridges

Eagle Pond Road over Eagle Pond Outlet

Good

Merrimack County, New Hampshire · 0.15MI Andover Tl · Structure no. 027501430013200

Built
1974
51 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eagle Pond Road over Eagle Pond Outlet is a prestressed concrete slab carrying Eagle Pond Road over Eagle Pond Outlet in Merrimack County, New Hampshire. It was built in 1974, so it is 51 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 96 vehicles a day, roughly 4% of them trucks, projected to reach 142 by 2043. The structure is 38 ft (11.6 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesEagle Pond Road
CrossesEagle Pond Outlet
Location0.15MI Andover Tl
Coordinates43.45475, -71.88326
Functional classRural 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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.8 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span30 ft (9.1 m)
Deck width19 ft (5.9 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Eagle Pond Road over Eagle Pond Outlet built?

It was built in 1974, making it 51 years old in 2025.

What condition is Eagle Pond Road over Eagle Pond Outlet 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 August 2024.

How much traffic does Eagle Pond Road over Eagle Pond Outlet carry?

About 96 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Eagle Pond Road over Eagle Pond Outlet?

The structure is 38 ft (11.6 m) long with a longest span of 30 ft (9.1 m) and a deck 19 ft wide.

Who owns Eagle Pond Road over Eagle Pond Outlet?

It is owned by the City or Municipal Highway Agency.