US Bridges

I-93 SB Ramps over I-93 SB

Good

Rockingham County, New Hampshire · 0.2 MI S of JCT Nh 38 · Structure no. 022800830005600

Built
2008
17 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
173 ft
1 main span
Daily traffic
18,966
2023 count
Owner
State
State Highway Agency

About this bridge

I-93 SB Ramps over I-93 SB is a steel stringer/multi-beam or girder carrying I-93 SB Ramps over I-93 SB in Rockingham County, New Hampshire. It was built in 2008, so it is 17 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 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 18,966 vehicles a day, roughly 6% of them trucks, projected to reach 28,069 by 2043. The structure is 173 ft (52.7 m) long and 81 ft wide.

Location

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CarriesI-93 SB Ramps
CrossesI-93 SB
Location0.2 MI S of JCT Nh 38
RouteInterstate 93
CountyRockingham County
StateNew Hampshire
Coordinates42.76073, -71.23377
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.3 US tons
Inventory rating46.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, precast panels
Main spans1
Design loadHS 20 + Mod
Structure length173 ft (52.7 m)
Longest span165 ft (50.3 m)
Deck width81 ft (24.7 m)
Roadway width76 ft (23.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic18,966 (2023)
Projected traffic28,069 by 2043
Trucks6%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 I-93 SB Ramps over I-93 SB built?

It was built in 2008, making it 17 years old in 2025.

What condition is I-93 SB Ramps over I-93 SB 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 May 2023.

How much traffic does I-93 SB Ramps over I-93 SB carry?

About 18,966 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-93 SB Ramps over I-93 SB?

The structure is 173 ft (52.7 m) long with a longest span of 165 ft (50.3 m) and a deck 81 ft wide.

Who owns I-93 SB Ramps over I-93 SB?

It is owned by the State Highway Agency.