US Bridges

Garland Road over Otter Brook

Good

Coos County, New Hampshire · 0.03 MI FR Grange RD · Structure no. 014101730009000

Built
1992
33 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
421
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Garland Road over Otter Brook is a concrete slab carrying Garland Road over Otter Brook in Coos County, New Hampshire. It was built in 1992, so it is 33 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 421 vehicles a day, roughly 4% of them trucks, projected to reach 623 by 2043. The structure is 28 ft (8.5 m) long and 27 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesGarland Road
CrossesOtter Brook
Location0.03 MI FR Grange RD
CountyCoos County
StateNew Hampshire
Coordinates44.48553, -71.52427
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating58 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length28 ft (8.5 m)
Longest span24 ft (7.3 m)
Deck width27 ft (8.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic421 (2023)
Projected traffic623 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Garland Road over Otter Brook built?

It was built in 1992, making it 33 years old in 2025.

What condition is Garland Road over Otter Brook 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 August 2024.

How much traffic does Garland Road over Otter Brook carry?

About 421 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Garland Road over Otter Brook?

The structure is 28 ft (8.5 m) long with a longest span of 24 ft (7.3 m) and a deck 27 ft wide.

Who owns Garland Road over Otter Brook?

It is owned by the City or Municipal Highway Agency.