US Bridges

Wire Road over Fee Tpk

Fair

Hillsborough County, New Hampshire · 0.5 MI Baboosic Road · Structure no. 016801140014000

Built
1954
71 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
178 ft
4 main spans
Daily traffic
4,571
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

Wire Road over Fee Tpk is a steel continuous stringer/multi-beam or girder carrying Wire Road over Fee Tpk in Hillsborough County, New Hampshire. It was built in 1954, so it is 71 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 4,571 vehicles a day, roughly 4% of them trucks, projected to reach 6,765 by 2043. The structure is 178 ft (54.3 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesWire Road
CrossesFee Tpk
Location0.5 MI Baboosic Road
RouteCity Street 0
CountyHillsborough County
StateNew Hampshire
Coordinates42.87453, -71.49557
Functional classUrban Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 15
Structure length178 ft (54.3 m)
Longest span50 ft (15.2 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,571 (2023)
Projected traffic6,765 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Toll Authority
Maintained byState Toll Authority
Historic statusPossibly eligible for the National Register; requires further investigation
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 Wire Road over Fee Tpk built?

It was built in 1954, making it 71 years old in 2025.

What condition is Wire Road over 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 2024.

How much traffic does Wire Road over Fee Tpk carry?

About 4,571 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Wire Road over Fee Tpk?

The structure is 178 ft (54.3 m) long with a longest span of 50 ft (15.2 m) and a deck 30 ft wide.

Who owns Wire Road over Fee Tpk?

It is owned by the State Toll Authority.