US Bridges

Patten Hill Road over NH101

Good

Rockingham County, New Hampshire · 1.7 MI from Raymond Tl · Structure no. 003701470007600

Built
1981
44 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
239 ft
2 main spans
Daily traffic
897
2023 count
Owner
State
State Highway Agency

About this bridge

Patten Hill Road over NH101 is a steel continuous stringer/multi-beam or girder carrying Patten Hill Road over NH101 in Rockingham County, New Hampshire. It was built in 1981, so it is 44 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 897 vehicles a day, roughly 4% of them trucks, projected to reach 1,327 by 2043. The structure is 239 ft (72.8 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesPatten Hill Road
CrossesNH101
Location1.7 MI from Raymond Tl
CountyRockingham County
StateNew Hampshire
Coordinates43.0419, -71.28079
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than 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 rating62.1 US tons
Inventory rating37.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length239 ft (72.8 m)
Longest span117 ft (35.7 m)
Deck width37 ft (11.4 m)
Roadway width29 ft (8.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic897 (2023)
Projected traffic1,327 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
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 Patten Hill Road over NH101 built?

It was built in 1981, making it 44 years old in 2025.

What condition is Patten Hill 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 Patten Hill Road over NH101 carry?

About 897 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Patten Hill Road over NH101?

The structure is 239 ft (72.8 m) long with a longest span of 117 ft (35.7 m) and a deck 37 ft wide.

Who owns Patten Hill Road over NH101?

It is owned by the State Highway Agency.