US Bridges

Maple Street over Nhrr(abd)

GoodPosted for load

Merrimack County, New Hampshire · 0.04 MI Nh 11 · Structure no. 000801730013000

Built
1930
95 years old, rebuilt 2005
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
62 ft
3 main spans
Daily traffic
243
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Maple Street over Nhrr(abd) is a wood or timber stringer/multi-beam or girder carrying Maple Street over Nhrr(abd) in Merrimack County, New Hampshire. It was built in 1930 and reconstructed in 2005, so it is 95 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 good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 243 vehicles a day, roughly 4% of them trucks, projected to reach 359 by 2043. The structure is 62 ft (18.9 m) long and 17 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMaple Street
CrossesNhrr(abd)
Location0.04 MI Nh 11
Coordinates43.45943, -71.74794
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment6: Equal to present minimum criteria
Operating rating21.1 US tons
Inventory rating15.3 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadUnknown
Structure length62 ft (18.9 m)
Longest span28 ft (8.5 m)
Deck width17 ft (5.2 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic243 (2023)
Projected traffic359 by 2043
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesPedestrian / bicycle
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
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 Maple Street over Nhrr(abd) built?

It was built in 1930, making it 95 years old in 2025. It was reconstructed in 2005.

What condition is Maple Street over Nhrr(abd) 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 October 2024.

How much traffic does Maple Street over Nhrr(abd) carry?

About 243 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Maple Street over Nhrr(abd)?

The structure is 62 ft (18.9 m) long with a longest span of 28 ft (8.5 m) and a deck 17 ft wide.

Who owns Maple Street over Nhrr(abd)?

It is owned by the City or Municipal Highway Agency.