US Bridges

Windsor Drive over Cohas Brook

Good

Rockingham County, New Hampshire · 0.10 Mi. Wilson Crossing · Structure no. 001301070005800

Built
2002
23 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
51 ft
1 main span
Daily traffic
208
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Windsor Drive over Cohas Brook is a concrete culvert carrying Windsor Drive over Cohas Brook in Rockingham County, New Hampshire. It was built in 2002, so it is 23 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 208 vehicles a day, projected to reach 307 by 2043. The structure is 51 ft (15.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesWindsor Drive
CrossesCohas Brook
Location0.10 Mi. Wilson Crossing
Coordinates42.95233, -71.34286
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
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 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 alignment6: Equal to present minimum criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span48 ft (14.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2023)
Projected traffic307 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Windsor Drive over Cohas Brook built?

It was built in 2002, making it 23 years old in 2025.

What condition is Windsor Drive over Cohas Brook 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 Windsor Drive over Cohas Brook carry?

About 208 vehicles per day (2023 count).

How long is Windsor Drive over Cohas Brook?

The structure is 51 ft (15.5 m) long with a longest span of 48 ft (14.6 m).

Who owns Windsor Drive over Cohas Brook?

It is owned by the City or Municipal Highway Agency.