US Bridges

Mill Road over Bearcamp River

Good

Carroll County, New Hampshire · 0.08 Mi. RTE.25 · Structure no. 025201500006800

Built
1930
95 years old, rebuilt 1990
Condition
Good
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
20
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Mill Road over Bearcamp River is a steel stringer/multi-beam or girder carrying Mill Road over Bearcamp River in Carroll County, New Hampshire. It was built in 1930 and reconstructed in 1990, so it is 95 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 20 vehicles a day, roughly 4% of them trucks, projected to reach 29 by 2043. The structure is 65 ft (19.8 m) long and 18 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesMill Road
CrossesBearcamp River
Location0.08 Mi. RTE.25
CountyCarroll County
StateNew Hampshire
Coordinates43.82643, -71.30278
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.
Superstructure7 GoodSome minor problems.
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating71 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length65 ft (19.8 m)
Longest span59 ft (18 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic29 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-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 Mill Road over Bearcamp River built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1990.

What condition is Mill Road over Bearcamp River 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 Mill Road over Bearcamp River carry?

About 20 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Mill Road over Bearcamp River?

The structure is 65 ft (19.8 m) long with a longest span of 59 ft (18 m) and a deck 18 ft wide.

Who owns Mill Road over Bearcamp River?

It is owned by the City or Municipal Highway Agency.