US Bridges

Waterworks Drive over Canal Outlet

Fair

Hillsborough County, New Hampshire · Near JCT Canal/Cohas Aves · Structure no. 016101770013400

Built
1940
85 years old
Condition
Fair
inspected July 2024
Type
Culvert
Masonry
Length
20 ft
1 main span
Daily traffic
25
1999 count
Owner
City
City or Municipal Highway Agency

About this bridge

Waterworks Drive over Canal Outlet is a masonry culvert carrying Waterworks Drive over Canal Outlet in Hillsborough 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 6 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 25 vehicles a day, roughly 5% of them trucks, projected to reach 37 by 2019. The structure is 20 ft (6.1 m) long.

Location

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CarriesWaterworks Drive
CrossesCanal Outlet
LocationNear JCT Canal/Cohas Aves
CountyHillsborough County
StateNew Hampshire
Coordinates42.95994, -71.40251
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating54.5 US tons
Inventory rating32.6 US tons

Structure

Structure typeCulvert
MaterialMasonry
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (1999)
Projected traffic37 by 2019
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Waterworks Drive over Canal Outlet built?

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

What condition is Waterworks Drive over Canal 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 July 2024.

How much traffic does Waterworks Drive over Canal Outlet carry?

About 25 vehicles per day (1999 count), of which roughly 5% are trucks.

How long is Waterworks Drive over Canal Outlet?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns Waterworks Drive over Canal Outlet?

It is owned by the City or Municipal Highway Agency.