US Bridges

I-93 Fee Tpk NB over Hall Street

Fair

Merrimack County, New Hampshire · .5 MI from JCT 3-A · Structure no. 005202010009700

Built
1958
67 years old, rebuilt 1988
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
161 ft
3 main spans
Daily traffic
37,766
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-93 Fee Tpk NB over Hall Street is a steel stringer/multi-beam or girder carrying I-93 Fee Tpk NB over Hall Street in Merrimack County, New Hampshire. It was built in 1958 and reconstructed in 1988, so it is 67 years old, older 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 5 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 37,766 vehicles a day, roughly 6% of them trucks, projected to reach 55,893 by 2043. The structure is 161 ft (49.1 m) long and 64 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesI-93 Fee Tpk NB
CrossesHall Street
Location.5 MI from JCT 3-A
RouteInterstate 93
CountyMerrimack County
StateNew Hampshire
Coordinates43.18456, -71.5235
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.1 US tons
Inventory rating56 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length161 ft (49.1 m)
Longest span59 ft (18 m)
Deck width64 ft (19.5 m)
Roadway width58 ft (17.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,766 (2023)
Projected traffic55,893 by 2043
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 km)
TollOn a free 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 NB over Hall Street built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1988.

What condition is I-93 Fee Tpk NB over Hall Street 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 May 2023.

How much traffic does I-93 Fee Tpk NB over Hall Street carry?

About 37,766 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is I-93 Fee Tpk NB over Hall Street?

The structure is 161 ft (49.1 m) long with a longest span of 59 ft (18 m) and a deck 64 ft wide.

Who owns I-93 Fee Tpk NB over Hall Street?

It is owned by the State Toll Authority.