US Bridges

NH111 over I-95

Fair

Rockingham County, New Hampshire · 1.2 MI JCT RTE 1 · Structure no. 019700810009300

Built
1975
50 years old, rebuilt 2015
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
296 ft
2 main spans
Daily traffic
7,327
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

NH111 over I-95 is a steel continuous stringer/multi-beam or girder carrying NH111 over I-95 in Rockingham County, New Hampshire. It was built in 1975 and reconstructed in 2015, so it is 50 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 7,327 vehicles a day, roughly 4% of them trucks, projected to reach 10,843 by 2043. The structure is 296 ft (90.2 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesNH111
CrossesI-95
Location1.2 MI JCT RTE 1
RouteState Highway 111
CountyRockingham County
StateNew Hampshire
Coordinates42.97451, -70.85394
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.4 US tons
Inventory rating34.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length296 ft (90.2 m)
Longest span145 ft (44.2 m)
Deck width52 ft (15.7 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,327 (2023)
Projected traffic10,843 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusNot eligible 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)
NavigationNot applicable (no waterway)

Frequently asked questions

When was NH111 over I-95 built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 2015.

What condition is NH111 over I-95 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 July 2023.

How much traffic does NH111 over I-95 carry?

About 7,327 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is NH111 over I-95?

The structure is 296 ft (90.2 m) long with a longest span of 145 ft (44.2 m) and a deck 52 ft wide.

Who owns NH111 over I-95?

It is owned by the State Toll Authority.