US Bridges

Wadleigh Hill Road over Kezar Lake Outlet

Fair

Merrimack County, New Hampshire · 0.17MI Nh 114 · Structure no. 025001120012600

Built
1940
85 years old
Condition
Fair
inspected April 2023
Type
Frame
Concrete
Length
26 ft
1 main span
Daily traffic
364
2023 count
Owner
State
State Highway Agency

About this bridge

Wadleigh Hill Road over Kezar Lake Outlet is a concrete frame carrying Wadleigh Hill Road over Kezar Lake Outlet in Merrimack County, New Hampshire. It was built in 1940, so it is 85 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 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 364 vehicles a day, roughly 4% of them trucks, projected to reach 538 by 2043. The structure is 26 ft (7.9 m) long and 23 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesWadleigh Hill Road
CrossesKezar Lake Outlet
Location0.17MI Nh 114
CountyMerrimack County
StateNew Hampshire
Coordinates43.36203, -71.94109
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 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
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.3 US tons
Inventory rating28.4 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span22 ft (6.7 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic364 (2023)
Projected traffic538 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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 Wadleigh Hill Road over Kezar Lake Outlet built?

It was built in 1940, making it 85 years old in 2025.

What condition is Wadleigh Hill Road over Kezar Lake Outlet 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 April 2023.

How much traffic does Wadleigh Hill Road over Kezar Lake Outlet carry?

About 364 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Wadleigh Hill Road over Kezar Lake Outlet?

The structure is 26 ft (7.9 m) long with a longest span of 22 ft (6.7 m) and a deck 23 ft wide.

Who owns Wadleigh Hill Road over Kezar Lake Outlet?

It is owned by the State Highway Agency.