US Bridges

South Road over I-95

Fair

Rockingham County, New Hampshire · 0.7 MI JCT 101D · Structure no. 019700790007900

Built
1975
50 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
263 ft
2 main spans
Daily traffic
1,808
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

South Road over I-95 is a steel continuous stringer/multi-beam or girder carrying South Road over I-95 in Rockingham County, New Hampshire. It was built in 1975, 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 1,808 vehicles a day, roughly 4% of them trucks, projected to reach 2,675 by 2043. The structure is 263 ft (80.2 m) long and 52 ft wide.

Location

Open in Google Maps
CarriesSouth Road
CrossesI-95
Location0.7 MI JCT 101D
CountyRockingham County
StateNew Hampshire
Coordinates42.9692, -70.85497
Functional classUrban 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.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating33.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length263 ft (80.2 m)
Longest span129 ft (39.3 m)
Deck width52 ft (15.7 m)
Roadway width51 ft (15.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,808 (2023)
Projected traffic2,675 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 South Road over I-95 built?

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

What condition is South Road 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 South Road over I-95 carry?

About 1,808 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is South Road over I-95?

The structure is 263 ft (80.2 m) long with a longest span of 129 ft (39.3 m) and a deck 52 ft wide.

Who owns South Road over I-95?

It is owned by the State Toll Authority.