US Bridges

Fee Tpk NB Ramp 4 over Ramp 3B

Good

Hillsborough County, New Hampshire · .02 MI from Robinson RD · Structure no. 017701340007300

Built
1997
28 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
122 ft
1 main span
Daily traffic
66,228
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Fee Tpk NB Ramp 4 over Ramp 3B is a steel continuous stringer/multi-beam or girder carrying Fee Tpk NB Ramp 4 over Ramp 3B in Hillsborough County, New Hampshire. It was built in 1997, so it is 28 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 66,228 vehicles a day, roughly 7% of them trucks, projected to reach 98,017 by 2043. The structure is 122 ft (37.2 m) long and 104 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFee Tpk NB Ramp 4
CrossesRamp 3B
Location.02 MI from Robinson RD
RouteU.S. Route 3
CountyHillsborough County
StateNew Hampshire
Coordinates42.73505, -71.4582
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Superstructure8 Very GoodNo problems noted.
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 geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.3 US tons
Inventory rating43.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length122 ft (37.2 m)
Longest span65 ft (19.8 m)
Deck width104 ft (31.7 m)
Roadway width100 ft (30.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic66,228 (2023)
Projected traffic98,017 by 2043
Trucks7%
Lanes on structure6
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
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 Fee Tpk NB Ramp 4 over Ramp 3B built?

It was built in 1997, making it 28 years old in 2025.

What condition is Fee Tpk NB Ramp 4 over Ramp 3B 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 Fee Tpk NB Ramp 4 over Ramp 3B carry?

About 66,228 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is Fee Tpk NB Ramp 4 over Ramp 3B?

The structure is 122 ft (37.2 m) long with a longest span of 65 ft (19.8 m) and a deck 104 ft wide.

Who owns Fee Tpk NB Ramp 4 over Ramp 3B?

It is owned by the State Toll Authority.