US Bridges

I-95 Ramps over Hodgson Brook

Fair

Rockingham County, New Hampshire · SP Tpk I-95 Interchange · Structure no. 021701900011800

Built
1956
69 years old, rebuilt 1972
Condition
Fair
inspected June 2023
Type
Culvert
Concrete
Length
34 ft
3 main spans
Daily traffic
16,022
2023 count
Owner
Toll Authority
State Toll Authority

About this bridge

I-95 Ramps over Hodgson Brook is a concrete culvert carrying I-95 Ramps over Hodgson Brook in Rockingham County, New Hampshire. It was built in 1956 and reconstructed in 1972, so it is 69 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 16,022 vehicles a day, roughly 4% of them trucks, projected to reach 23,712 by 2043. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-95 Ramps
CrossesHodgson Brook
LocationSP Tpk I-95 Interchange
RouteState Highway 16
CountyRockingham County
StateNew Hampshire
Coordinates43.07148, -70.7832
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69.7 US tons
Inventory rating41.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length34 ft (10.4 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,022 (2023)
Projected traffic23,712 by 2043
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-95 Ramps over Hodgson Brook built?

It was built in 1956, making it 69 years old in 2025. It was reconstructed in 1972.

What condition is I-95 Ramps over Hodgson Brook 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 2023.

How much traffic does I-95 Ramps over Hodgson Brook carry?

About 16,022 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is I-95 Ramps over Hodgson Brook?

The structure is 34 ft (10.4 m) long with a longest span of 10 ft (3 m).

Who owns I-95 Ramps over Hodgson Brook?

It is owned by the State Toll Authority.