US Bridges

Dole School Hs RD over Highland Lake Outlet

Good

Sullivan County, New Hampshire · 0.09MI Nh 31 · Structure no. 026501650004100

Built
2012
13 years old
Condition
Good
inspected September 2024
Type
Slab
Wood or Timber
Length
37 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Dole School Hs RD over Highland Lake Outlet is a wood or timber slab carrying Dole School Hs RD over Highland Lake Outlet in Sullivan County, New Hampshire. It was built in 2012, so it is 13 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 96 vehicles a day, roughly 4% of them trucks, projected to reach 142 by 2043. The structure is 37 ft (11.3 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesDole School Hs RD
CrossesHighland Lake Outlet
Location0.09MI Nh 31
Coordinates43.14616, -72.05482
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 inspectionSeptember 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating60 US tons
Inventory rating45 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length37 ft (11.3 m)
Longest span35 ft (10.7 m)
Deck width20 ft (6.1 m)
Roadway width19 ft (5.8 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 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 Dole School Hs RD over Highland Lake Outlet built?

It was built in 2012, making it 13 years old in 2025.

What condition is Dole School Hs RD over Highland Lake 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 September 2024.

How much traffic does Dole School Hs RD over Highland Lake Outlet carry?

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

How long is Dole School Hs RD over Highland Lake Outlet?

The structure is 37 ft (11.3 m) long with a longest span of 35 ft (10.7 m) and a deck 20 ft wide.

Who owns Dole School Hs RD over Highland Lake Outlet?

It is owned by the City or Municipal Highway Agency.