US Bridges

Nh 27(EXETER Rd) over Csx(abd)

Good

Rockingham County, New Hampshire · 3.8 MI E. Exet-Hamp T.L. · Structure no. 011101620014200

Built
1926
99 years old, rebuilt 2006
Condition
Good
inspected August 2024
Type
Slab
Prestressed Concrete
Length
38 ft
1 main span
Daily traffic
11,099
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nh 27(EXETER Rd) over Csx(abd) is a prestressed concrete slab carrying Nh 27(EXETER Rd) over Csx(abd) in Rockingham County, New Hampshire. It was built in 1926 and reconstructed in 2006, so it is 99 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 11,099 vehicles a day, roughly 5% of them trucks, projected to reach 16,426 by 2043. The structure is 38 ft (11.6 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesNh 27(EXETER Rd)
CrossesCsx(abd)
Location3.8 MI E. Exet-Hamp T.L.
RouteState Highway 27
Coordinates42.94228, -70.83861
Functional classUrban Minor Arterial

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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.8 US tons
Inventory rating50.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 25 or greater
Structure length38 ft (11.6 m)
Longest span33 ft (10.2 m)
Deck width42 ft (12.8 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,099 (2023)
Projected traffic16,426 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed3.7 mi (6 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Nh 27(EXETER Rd) over Csx(abd) built?

It was built in 1926, making it 99 years old in 2025. It was reconstructed in 2006.

What condition is Nh 27(EXETER Rd) over Csx(abd) 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 August 2024.

How much traffic does Nh 27(EXETER Rd) over Csx(abd) carry?

About 11,099 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Nh 27(EXETER Rd) over Csx(abd)?

The structure is 38 ft (11.6 m) long with a longest span of 33 ft (10.2 m) and a deck 42 ft wide.

Who owns Nh 27(EXETER Rd) over Csx(abd)?

It is owned by the City or Municipal Highway Agency.