US Bridges

Waukewan RD over Waukewan Lake Inlet

Good

Belknap County, New Hampshire · New Hampton T/L · Structure no. 004000810004000

Built
2022
3 years old
Condition
Good
inspected May 2023
Type
Slab
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
541
2023 count
Owner
State
State Highway Agency

About this bridge

Waukewan RD over Waukewan Lake Inlet is a prestressed concrete slab carrying Waukewan RD over Waukewan Lake Inlet in Belknap County, New Hampshire. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 541 vehicles a day, roughly 10% of them trucks, projected to reach 800 by 2043. The structure is 32 ft (9.8 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesWaukewan RD
CrossesWaukewan Lake Inlet
LocationNew Hampton T/L
RouteState Highway 0
CountyBelknap County
StateNew Hampshire
Coordinates43.66467, -71.54524
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating110.1 US tons
Inventory rating90.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span28 ft (8.5 m)
Deck width22 ft (6.8 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic541 (2023)
Projected traffic800 by 2043
Trucks10%
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

OwnerState Highway Agency
Maintained byState 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 Waukewan RD over Waukewan Lake Inlet built?

It was built in 2022, making it 3 years old in 2025.

What condition is Waukewan RD over Waukewan Lake Inlet 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 May 2023.

How much traffic does Waukewan RD over Waukewan Lake Inlet carry?

About 541 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Waukewan RD over Waukewan Lake Inlet?

The structure is 32 ft (9.8 m) long with a longest span of 28 ft (8.5 m) and a deck 22 ft wide.

Who owns Waukewan RD over Waukewan Lake Inlet?

It is owned by the State Highway Agency.