US Bridges

NH101 over Nh 13

Good

Hillsborough County, New Hampshire · 1 MI S Milford Village · Structure no. 017201280010500

Built
1976
49 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
113 ft
1 main span
Daily traffic
24,280
2023 count
Owner
State
State Highway Agency

About this bridge

NH101 over Nh 13 is a steel stringer/multi-beam or girder carrying NH101 over Nh 13 in Hillsborough County, New Hampshire. It was built in 1976, so it is 49 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 24,280 vehicles a day, roughly 5% of them trucks, projected to reach 35,934 by 2043. The structure is 113 ft (34.4 m) long and 47 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNH101
CrossesNh 13
Location1 MI S Milford Village
RouteState Highway 101
Coordinates42.81713, -71.64612
Functional classUrban Other Principal Arterial

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 2024
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 rating56.5 US tons
Inventory rating33.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length113 ft (34.4 m)
Longest span109 ft (33.2 m)
Deck width47 ft (14.3 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,280 (2023)
Projected traffic35,934 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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 NH101 over Nh 13 built?

It was built in 1976, making it 49 years old in 2025.

What condition is NH101 over Nh 13 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 2024.

How much traffic does NH101 over Nh 13 carry?

About 24,280 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is NH101 over Nh 13?

The structure is 113 ft (34.4 m) long with a longest span of 109 ft (33.2 m) and a deck 47 ft wide.

Who owns NH101 over Nh 13?

It is owned by the State Highway Agency.