US Bridges

Coolidge Woods RD over Prescott Brook

Good

Belknap County, New Hampshire · 0.13 MI FR Blake Hill RD · Structure no. 018400310003200

Built
1920
105 years old, rebuilt 1990
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
31 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Coolidge Woods RD over Prescott Brook is a wood or timber stringer/multi-beam or girder carrying Coolidge Woods RD over Prescott Brook in Belknap County, New Hampshire. It was built in 1920 and reconstructed in 1990, so it is 105 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 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 96 vehicles a day, projected to reach 142 by 2043. The structure is 31 ft (9.4 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesCoolidge Woods RD
CrossesPrescott Brook
Location0.13 MI FR Blake Hill RD
CountyBelknap County
StateNew Hampshire
Coordinates43.54613, -71.70114
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating48 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadUnknown
Structure length31 ft (9.4 m)
Longest span29 ft (8.8 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-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 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 Coolidge Woods RD over Prescott Brook built?

It was built in 1920, making it 105 years old in 2025. It was reconstructed in 1990.

What condition is Coolidge Woods RD over Prescott 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 October 2023.

How much traffic does Coolidge Woods RD over Prescott Brook carry?

About 96 vehicles per day (2023 count).

How long is Coolidge Woods RD over Prescott Brook?

The structure is 31 ft (9.4 m) long with a longest span of 29 ft (8.8 m) and a deck 16 ft wide.

Who owns Coolidge Woods RD over Prescott Brook?

It is owned by the City or Municipal Highway Agency.