US Bridges

Eastman Road over Orange Brook

Fair

Grafton County, New Hampshire · 0.08 MI FR Canaan Tl · Structure no. 020200490009800

Built
1976
49 years old
Condition
Fair
inspected October 2023
Type
Frame
Concrete
Length
40 ft
1 main span
Daily traffic
56
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eastman Road over Orange Brook is a concrete frame carrying Eastman Road over Orange Brook in Grafton County, New Hampshire. It was built in 1976, so it is 49 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 56 vehicles a day, roughly 4% of them trucks, projected to reach 82 by 2043. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesEastman Road
CrossesOrange Brook
Location0.08 MI FR Canaan Tl
CountyGrafton County
StateNew Hampshire
Coordinates43.65048, -71.98524
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span35 ft (10.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic56 (2023)
Projected traffic82 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 Eastman Road over Orange Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is Eastman Road over Orange 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 October 2023.

How much traffic does Eastman Road over Orange Brook carry?

About 56 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Eastman Road over Orange Brook?

The structure is 40 ft (12.2 m) long with a longest span of 35 ft (10.7 m) and a deck 32 ft wide.

Who owns Eastman Road over Orange Brook?

It is owned by the City or Municipal Highway Agency.