US Bridges

Tinker Road over Pennichuck Reservoir

Good

Hillsborough County, New Hampshire · At Nashua Tl · Structure no. 016800930003900

Built
1999
26 years old
Condition
Good
inspected August 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
24 ft
1 main span
Daily traffic
3,502
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Tinker Road over Pennichuck Reservoir is a aluminum, wrought iron, or cast iron culvert carrying Tinker Road over Pennichuck Reservoir in Hillsborough County, New Hampshire. It was built in 1999, so it is 26 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 3,502 vehicles a day, roughly 4% of them trucks, projected to reach 5,182 by 2043. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 3.7 mi (6 km).

CarriesTinker Road
CrossesPennichuck Reservoir
LocationAt Nashua Tl
RouteCity Street 0
Coordinates42.80243, -71.51296
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating99 US tons
Inventory rating65.1 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadHS 25 or greater
Structure length24 ft (7.3 m)
Longest span24 ft (7.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,502 (2023)
Projected traffic5,182 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Tinker Road over Pennichuck Reservoir built?

It was built in 1999, making it 26 years old in 2025.

What condition is Tinker Road over Pennichuck Reservoir 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 Tinker Road over Pennichuck Reservoir carry?

About 3,502 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Tinker Road over Pennichuck Reservoir?

The structure is 24 ft (7.3 m) long with a longest span of 24 ft (7.3 m).

Who owns Tinker Road over Pennichuck Reservoir?

It is owned by the City or Municipal Highway Agency.