US Bridges

I-93 Fee Tpk Ramp over Hackett Hill Road

Fair

Merrimack County, New Hampshire · 2.5 MI N. Manchester T.L · Structure no. 012800710013400

Built
1978
47 years old, rebuilt 2012
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
69 ft
1 main span
Daily traffic
86,013
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-93 Fee Tpk Ramp over Hackett Hill Road is a steel stringer/multi-beam or girder carrying I-93 Fee Tpk Ramp over Hackett Hill Road in Merrimack County, New Hampshire. It was built in 1978 and reconstructed in 2012, so it is 47 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 86,013 vehicles a day, roughly 9% of them trucks, projected to reach 127,299 by 2043. The structure is 69 ft (21 m) long and 298 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesI-93 Fee Tpk Ramp
CrossesHackett Hill Road
Location2.5 MI N. Manchester T.L
RouteInterstate 93
CountyMerrimack County
StateNew Hampshire
Coordinates43.08312, -71.47321
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating33 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length69 ft (21 m)
Longest span66 ft (20.1 m)
Deck width298 ft (90.8 m)
Roadway width268 ft (81.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86,013 (2023)
Projected traffic127,299 by 2043
Trucks9%
Lanes on structure11
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a toll road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-93 Fee Tpk Ramp over Hackett Hill Road built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2012.

What condition is I-93 Fee Tpk Ramp over Hackett Hill Road in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does I-93 Fee Tpk Ramp over Hackett Hill Road carry?

About 86,013 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is I-93 Fee Tpk Ramp over Hackett Hill Road?

The structure is 69 ft (21 m) long with a longest span of 66 ft (20.1 m) and a deck 298 ft wide.

Who owns I-93 Fee Tpk Ramp over Hackett Hill Road?

It is owned by the State Toll Authority.