US Bridges

Nh 27 over Bean Brook

Fair

Rockingham County, New Hampshire · 1.4MI JCT Rt 27 · Structure no. 003701890010300

Built
1937
88 years old, rebuilt 1972
Condition
Fair
inspected April 2023
Type
Frame
Concrete
Length
23 ft
1 main span
Daily traffic
3,103
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 27 over Bean Brook is a concrete frame carrying Nh 27 over Bean Brook in Rockingham County, New Hampshire. It was built in 1937 and reconstructed in 1972, so it is 88 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.

It carries about 3,103 vehicles a day, roughly 4% of them trucks, projected to reach 4,592 by 2043. The structure is 23 ft (7 m) long and 47 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesNh 27
CrossesBean Brook
Location1.4MI JCT Rt 27
RouteState Highway 27
CountyRockingham County
StateNew Hampshire
Coordinates43.06259, -71.24136
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating59.2 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length23 ft (7 m)
Longest span21 ft (6.4 m)
Deck width47 ft (14.3 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,103 (2023)
Projected traffic4,592 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nh 27 over Bean Brook built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1972.

What condition is Nh 27 over Bean 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 April 2023.

How much traffic does Nh 27 over Bean Brook carry?

About 3,103 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nh 27 over Bean Brook?

The structure is 23 ft (7 m) long with a longest span of 21 ft (6.4 m) and a deck 47 ft wide.

Who owns Nh 27 over Bean Brook?

It is owned by the State Highway Agency.