US Bridges

Crane Hill Road over Gale River

PoorPosted for load

Grafton County, New Hampshire · Town RD · Structure no. 024552020012800

Built
1928
97 years old, rebuilt 1960
Condition
Poor
inspected October 2024
Type
Truss - Thru
Steel
Length
108 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Crane Hill Road over Gale River is a steel truss - thru carrying Crane Hill Road over Gale River in Grafton County, New Hampshire. It was built in 1928 and reconstructed in 1960, so it is 97 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 96 vehicles a day, roughly 4% of them trucks, projected to reach 142 by 2043. The structure is 108 ft (32.9 m) long and 19 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesCrane Hill Road
CrossesGale River
LocationTown RD
Coordinates44.2474, -71.77306
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 16 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating21.4 US tons
Inventory rating14.8 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckWood or timber
Main spans1
Design loadH 15
Structure length108 ft (32.9 m)
Longest span104 ft (31.7 m)
Deck width19 ft (5.8 m)
Roadway width9 ft (2.8 m)
Vertical clearance over deck12 ft (3.7 m)

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 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 Crane Hill Road over Gale River built?

It was built in 1928, making it 97 years old in 2025. It was reconstructed in 1960.

What condition is Crane Hill Road over Gale River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2024.

How much traffic does Crane Hill Road over Gale River carry?

About 96 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Crane Hill Road over Gale River?

The structure is 108 ft (32.9 m) long with a longest span of 104 ft (31.7 m) and a deck 19 ft wide.

Who owns Crane Hill Road over Gale River?

It is owned by the City or Municipal Highway Agency.