US Bridges

Whitten Neck Road over Crescent Lake Inlet

Good

Carroll County, New Hampshire · 0.19 Mi.Fr. Nh 28 · Structure no. 028301260010700

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
44 ft
1 main span
Daily traffic
502
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Whitten Neck Road over Crescent Lake Inlet is a prestressed concrete slab carrying Whitten Neck Road over Crescent Lake Inlet in Carroll County, New Hampshire. It was built in 2005, so it is 20 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 502 vehicles a day, roughly 4% of them trucks, projected to reach 742 by 2043. The structure is 44 ft (13.4 m) long and 33 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesWhitten Neck Road
CrossesCrescent Lake Inlet
Location0.19 Mi.Fr. Nh 28
CountyCarroll County
StateNew Hampshire
Coordinates43.59679, -71.19512
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.8 US tons
Inventory rating47.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length44 ft (13.4 m)
Longest span40 ft (12.2 m)
Deck width33 ft (10 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic502 (2023)
Projected traffic742 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Whitten Neck Road over Crescent Lake Inlet built?

It was built in 2005, making it 20 years old in 2025.

What condition is Whitten Neck Road over Crescent 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 August 2024.

How much traffic does Whitten Neck Road over Crescent Lake Inlet carry?

About 502 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Whitten Neck Road over Crescent Lake Inlet?

The structure is 44 ft (13.4 m) long with a longest span of 40 ft (12.2 m) and a deck 33 ft wide.

Who owns Whitten Neck Road over Crescent Lake Inlet?

It is owned by the City or Municipal Highway Agency.