US Bridges

NH108 NH111 Nh 27 over Exeter River

Fair

Rockingham County, New Hampshire · .1 MI from JCT Rt 101C · Structure no. 008201030007300

Built
1934
91 years old, rebuilt 2002
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
65 ft
1 main span
Daily traffic
13,290
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

NH108 NH111 Nh 27 over Exeter River is a prestressed concrete stringer/multi-beam or girder carrying NH108 NH111 Nh 27 over Exeter River in Rockingham County, New Hampshire. It was built in 1934 and reconstructed in 2002, so it is 91 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 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 13,290 vehicles a day, roughly 5% of them trucks, projected to reach 19,669 by 2043. The structure is 65 ft (19.8 m) long and 43 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNH108 NH111 Nh 27
CrossesExeter River
Location.1 MI from JCT Rt 101C
RouteState Highway 108
Coordinates42.98084, -70.94399
Functional classUrban Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating74.2 US tons
Inventory rating45 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length65 ft (19.8 m)
Longest span63 ft (19.2 m)
Deck width43 ft (13.1 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,290 (2023)
Projected traffic19,669 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 statusEligible for the National Register of Historic Places
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 NH108 NH111 Nh 27 over Exeter River built?

It was built in 1934, making it 91 years old in 2025. It was reconstructed in 2002.

What condition is NH108 NH111 Nh 27 over Exeter River 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 NH108 NH111 Nh 27 over Exeter River carry?

About 13,290 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is NH108 NH111 Nh 27 over Exeter River?

The structure is 65 ft (19.8 m) long with a longest span of 63 ft (19.2 m) and a deck 43 ft wide.

Who owns NH108 NH111 Nh 27 over Exeter River?

It is owned by the City or Municipal Highway Agency.