US Bridges

I-293 WB NH101 over Nh 3A Brown Ave

Good

Hillsborough County, New Hampshire · 1.2MI W JCT RTE 28 · Structure no. 016101850007700

Built
2004
21 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
152 ft
1 main span
Daily traffic
45,058
2023 count
Owner
State
State Highway Agency

About this bridge

I-293 WB NH101 over Nh 3A Brown Ave is a steel stringer/multi-beam or girder carrying I-293 WB NH101 over Nh 3A Brown Ave in Hillsborough County, New Hampshire. It was built in 2004, so it is 21 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 45,058 vehicles a day, roughly 6% of them trucks, projected to reach 66,685 by 2043. The structure is 152 ft (46.3 m) long and 53 ft wide.

Location

Open in Google Maps
CarriesI-293 WB NH101
CrossesNh 3A Brown Ave
Location1.2MI W JCT RTE 28
RouteInterstate 293
CountyHillsborough County
StateNew Hampshire
Coordinates42.94934, -71.45426
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.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.1 US tons
Inventory rating48 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length152 ft (46.3 m)
Longest span148 ft (45.1 m)
Deck width53 ft (16.2 m)
Roadway width49 ft (14.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic45,058 (2023)
Projected traffic66,685 by 2043
Trucks6%
Lanes on structure2
Traffic directionOne-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-293 WB NH101 over Nh 3A Brown Ave built?

It was built in 2004, making it 21 years old in 2025.

What condition is I-293 WB NH101 over Nh 3A Brown Ave 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 I-293 WB NH101 over Nh 3A Brown Ave carry?

About 45,058 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-293 WB NH101 over Nh 3A Brown Ave?

The structure is 152 ft (46.3 m) long with a longest span of 148 ft (45.1 m) and a deck 53 ft wide.

Who owns I-293 WB NH101 over Nh 3A Brown Ave?

It is owned by the State Highway Agency.