US Bridges

Wieczorek DR over Merrimack R Nh 3A CSX

Good

Hillsborough County, New Hampshire · 1 Mile West of Mht · Structure no. 001902090008500

Built
2011
14 years old
Condition
Good
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,220 ft
6 main spans
Daily traffic
57,651
2023 count
Owner
State
State Highway Agency

About this bridge

Wieczorek DR over Merrimack R Nh 3A CSX is a steel continuous stringer/multi-beam or girder carrying Wieczorek DR over Merrimack R Nh 3A CSX in Hillsborough County, New Hampshire. It was built in 2011, so it is 14 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 good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 57,651 vehicles a day, roughly 10% of them trucks, projected to reach 85,323 by 2043. The structure is 1,220 ft (371.9 m) long and 126 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesWieczorek DR
CrossesMerrimack R Nh 3A CSX
Location1 Mile West of Mht
RouteState Highway 0
CountyHillsborough County
StateNew Hampshire
Coordinates42.9135, -71.45291
Functional classUrban Principal Arterial - Other Freeway or Expressway

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.1 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 25 or greater
Structure length1,220 ft (371.9 m)
Longest span222 ft (67.8 m)
Deck width126 ft (38.5 m)
Roadway width108 ft (33 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57,651 (2023)
Projected traffic85,323 by 2043
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway, waterway and railroad
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
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 Wieczorek DR over Merrimack R Nh 3A CSX built?

It was built in 2011, making it 14 years old in 2025.

What condition is Wieczorek DR over Merrimack R Nh 3A CSX in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Wieczorek DR over Merrimack R Nh 3A CSX carry?

About 57,651 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Wieczorek DR over Merrimack R Nh 3A CSX?

The structure is 1,220 ft (371.9 m) long with a longest span of 222 ft (67.8 m) and a deck 126 ft wide.

Who owns Wieczorek DR over Merrimack R Nh 3A CSX?

It is owned by the State Highway Agency.