US Bridges

Bodwell Road over Cohas Brook

Good

Hillsborough County, New Hampshire · 0.3 MI N Londonderry Tl · Structure no. 016102090015500

Built
1984
41 years old
Condition
Good
inspected July 2024
Type
Culvert
Concrete
Length
21 ft
3 main spans
Daily traffic
2,576
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bodwell Road over Cohas Brook is a concrete culvert carrying Bodwell Road over Cohas Brook in Hillsborough County, New Hampshire. It was built in 1984, so it is 41 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 2,576 vehicles a day, projected to reach 3,812 by 2043. The structure is 21 ft (6.4 m) long.

Location

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CarriesBodwell Road
CrossesCohas Brook
Location0.3 MI N Londonderry Tl
RouteCity Street 0
CountyHillsborough County
StateNew Hampshire
Coordinates42.93942, -71.37852
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJuly 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 alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating99 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length21 ft (6.4 m)
Longest span6 ft (1.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,576 (2023)
Projected traffic3,812 by 2043
Trucks0%
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 Bodwell Road over Cohas Brook built?

It was built in 1984, making it 41 years old in 2025.

What condition is Bodwell Road 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 July 2024.

How much traffic does Bodwell Road over Cohas Brook carry?

About 2,576 vehicles per day (2023 count).

How long is Bodwell Road over Cohas Brook?

The structure is 21 ft (6.4 m) long with a longest span of 6 ft (1.8 m).

Who owns Bodwell Road over Cohas Brook?

It is owned by the City or Municipal Highway Agency.