US Bridges

Pine Street over I-93 Fee Tpk

Fair

Merrimack County, New Hampshire · .5 MI So. Bow Tl · Structure no. 012800690016200

Built
1978
47 years old, rebuilt 2006
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
273 ft
2 main spans
Daily traffic
2,263
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Pine Street over I-93 Fee Tpk is a steel continuous stringer/multi-beam or girder carrying Pine Street over I-93 Fee Tpk in Merrimack County, New Hampshire. It was built in 1978 and reconstructed in 2006, 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 2,263 vehicles a day, roughly 4% of them trucks, projected to reach 3,349 by 2043. The structure is 273 ft (83.2 m) long and 51 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesPine Street
CrossesI-93 Fee Tpk
Location.5 MI So. Bow Tl
RouteCity Street 0
Coordinates43.1025, -71.47497
Functional classUrban Local

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.
Substructure7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating36 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length273 ft (83.2 m)
Longest span145 ft (44.2 m)
Deck width51 ft (15.5 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,263 (2023)
Projected traffic3,349 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

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 Pine Street over I-93 Fee Tpk built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2006.

What condition is Pine Street over I-93 Fee Tpk 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 Pine Street over I-93 Fee Tpk carry?

About 2,263 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Pine Street over I-93 Fee Tpk?

The structure is 273 ft (83.2 m) long with a longest span of 145 ft (44.2 m) and a deck 51 ft wide.

Who owns Pine Street over I-93 Fee Tpk?

It is owned by the State Toll Authority.