US Bridges

Martin Road over NH101

Good

Rockingham County, New Hampshire · 1.1 MI West JCT NH101/125 · Structure no. 007800970003300

Built
1995
30 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
2 main spans
Daily traffic
208
2023 count
Owner
State
State Highway Agency

About this bridge

Martin Road over NH101 is a steel continuous stringer/multi-beam or girder carrying Martin Road over NH101 in Rockingham County, New Hampshire. It was built in 1995, so it is 30 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 208 vehicles a day, roughly 4% of them trucks, projected to reach 307 by 2043. The structure is 170 ft (51.8 m) long and 37 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesMartin Road
CrossesNH101
Location1.1 MI West JCT NH101/125
CountyRockingham County
StateNew Hampshire
Coordinates43.02719, -71.08594
Functional classRural Local

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.2 US tons
Inventory rating46.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length170 ft (51.8 m)
Longest span83 ft (25.3 m)
Deck width37 ft (11.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic208 (2023)
Projected traffic307 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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)
NavigationNo navigation control on waterway

Frequently asked questions

When was Martin Road over NH101 built?

It was built in 1995, making it 30 years old in 2025.

What condition is Martin Road over NH101 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 April 2023.

How much traffic does Martin Road over NH101 carry?

About 208 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Martin Road over NH101?

The structure is 170 ft (51.8 m) long with a longest span of 83 ft (25.3 m) and a deck 37 ft wide.

Who owns Martin Road over NH101?

It is owned by the State Highway Agency.