US Bridges

South Ramp over I-293 Fee Tpk

Fair

Hillsborough County, New Hampshire · At Amoskeag Interchange · Structure no. 016101110006600

Built
1957
68 years old, rebuilt 1988
Condition
Fair
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
104 ft
2 main spans
Daily traffic
11,866
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

South Ramp over I-293 Fee Tpk is a steel stringer/multi-beam or girder carrying South Ramp over I-293 Fee Tpk in Hillsborough County, New Hampshire. It was built in 1957 and reconstructed in 1988, so it is 68 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 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 11,866 vehicles a day, roughly 4% of them trucks, projected to reach 17,561 by 2043. The structure is 104 ft (31.7 m) long and 37 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

Location

Open in Google Maps
CarriesSouth Ramp
CrossesI-293 Fee Tpk
LocationAt Amoskeag Interchange
RouteCity Street 0
CountyHillsborough County
StateNew Hampshire
Coordinates43.00256, -71.47521
Functional classUrban Other Principal Arterial

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating58.8 US tons
Inventory rating35.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length104 ft (31.7 m)
Longest span52 ft (15.8 m)
Deck width37 ft (11.3 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,866 (2023)
Projected traffic17,561 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed16.2 mi (26 km)
TollOn a free 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 South Ramp over I-293 Fee Tpk built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 1988.

What condition is South Ramp over I-293 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 April 2023.

How much traffic does South Ramp over I-293 Fee Tpk carry?

About 11,866 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is South Ramp over I-293 Fee Tpk?

The structure is 104 ft (31.7 m) long with a longest span of 52 ft (15.8 m) and a deck 37 ft wide.

Who owns South Ramp over I-293 Fee Tpk?

It is owned by the State Toll Authority.