US Bridges

NH111 over Wetland 41

Good

Rockingham County, New Hampshire · Windham · Structure no. 028001660012300

Built
2007
18 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Concrete
Length
66 ft
1 main span
Daily traffic
17,028
2023 count
Owner
State
State Highway Agency

About this bridge

NH111 over Wetland 41 is a concrete stringer/multi-beam or girder carrying NH111 over Wetland 41 in Rockingham County, New Hampshire. It was built in 2007, so it is 18 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 17,028 vehicles a day, roughly 6% of them trucks, projected to reach 25,201 by 2043. The structure is 66 ft (20.1 m) long and 48 ft wide.

CarriesNH111
CrossesWetland 41
LocationWindham
RouteState Highway 111
Coordinates42.82247, -71.24351
Functional classUrban Other Principal Arterial

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 protection9 ExcellentNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating77.8 US tons
Inventory rating46.6 US tons

Structure

MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length66 ft (20.1 m)
Longest span59 ft (18 m)
Deck width48 ft (14.6 m)
Roadway width43 ft (13.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,028 (2023)
Projected traffic25,201 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 NH111 over Wetland 41 built?

It was built in 2007, making it 18 years old in 2025.

What condition is NH111 over Wetland 41 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 May 2023.

How much traffic does NH111 over Wetland 41 carry?

About 17,028 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is NH111 over Wetland 41?

The structure is 66 ft (20.1 m) long with a longest span of 59 ft (18 m) and a deck 48 ft wide.

Who owns NH111 over Wetland 41?

It is owned by the State Highway Agency.