US Bridges

Old Roxbury Road over Minnewawa Brook

FairPosted for load

Cheshire County, New Hampshire · 1.2 Mi. Roxbury Tl · Structure no. 016300940013900

Built
1930
95 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
63 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Old Roxbury Road over Minnewawa Brook is a steel stringer/multi-beam or girder carrying Old Roxbury Road over Minnewawa Brook in Cheshire County, New Hampshire. It was built in 1930, 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 fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. 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 63 ft (19.2 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesOld Roxbury Road
CrossesMinnewawa Brook
Location1.2 Mi. Roxbury Tl
CountyCheshire County
StateNew Hampshire
Coordinates42.91471, -72.18869
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating16 US tons
Inventory rating9.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 10
Structure length63 ft (19.2 m)
Longest span59 ft (18 m)
Deck width20 ft (6 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Old Roxbury Road over Minnewawa Brook built?

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

What condition is Old Roxbury Road over Minnewawa Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Old Roxbury Road over Minnewawa Brook carry?

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

How long is Old Roxbury Road over Minnewawa Brook?

The structure is 63 ft (19.2 m) long with a longest span of 59 ft (18 m) and a deck 20 ft wide.

Who owns Old Roxbury Road over Minnewawa Brook?

It is owned by the City or Municipal Highway Agency.