US Bridges

I-93 NB over Nh 38

Good

Rockingham County, New Hampshire · 2.0 MI N. of Nh/Ma Line · Structure no. 022800790006300

Built
2013
12 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
1 main span
Daily traffic
47,229
2023 count
Owner
State
State Highway Agency

About this bridge

I-93 NB over Nh 38 is a steel stringer/multi-beam or girder carrying I-93 NB over Nh 38 in Rockingham County, New Hampshire. It was built in 2013, so it is 12 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 47,229 vehicles a day, roughly 5% of them trucks, projected to reach 69,898 by 2043. The structure is 133 ft (40.5 m) long and 87 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesI-93 NB
CrossesNh 38
Location2.0 MI N. of Nh/Ma Line
RouteInterstate 93
CountyRockingham County
StateNew Hampshire
Coordinates42.76544, -71.23635
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.5 US tons
Inventory rating45.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length133 ft (40.5 m)
Longest span126 ft (38.4 m)
Deck width87 ft (26.5 m)
Roadway width84 ft (25.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,229 (2023)
Projected traffic69,898 by 2043
Trucks5%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
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 NB over Nh 38 built?

It was built in 2013, making it 12 years old in 2025.

What condition is I-93 NB over Nh 38 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 NB over Nh 38 carry?

About 47,229 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is I-93 NB over Nh 38?

The structure is 133 ft (40.5 m) long with a longest span of 126 ft (38.4 m) and a deck 87 ft wide.

Who owns I-93 NB over Nh 38?

It is owned by the State Highway Agency.