US Bridges

Bailey Road over Bog Brook

Good

Grafton County, New Hampshire · 1.5 MI from Bristol Tl · Structure no. 000301780014100

Built
1989
36 years old, rebuilt 2020
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
51 ft
1 main span
Daily traffic
464
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Bailey Road over Bog Brook is a steel stringer/multi-beam or girder carrying Bailey Road over Bog Brook in Grafton County, New Hampshire. It was built in 1989 and reconstructed in 2020, so it is 36 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 464 vehicles a day, roughly 4% of them trucks, projected to reach 686 by 2043. The structure is 51 ft (15.5 m) long and 25 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesBailey Road
CrossesBog Brook
Location1.5 MI from Bristol Tl
CountyGrafton County
StateNew Hampshire
Coordinates43.62046, -71.7752
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
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating63.1 US tons
Inventory rating37.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span43 ft (13.1 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic464 (2023)
Projected traffic686 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 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 Bailey Road over Bog Brook built?

It was built in 1989, making it 36 years old in 2025. It was reconstructed in 2020.

What condition is Bailey Road over Bog 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 2023.

How much traffic does Bailey Road over Bog Brook carry?

About 464 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Bailey Road over Bog Brook?

The structure is 51 ft (15.5 m) long with a longest span of 43 ft (13.1 m) and a deck 25 ft wide.

Who owns Bailey Road over Bog Brook?

It is owned by the City or Municipal Highway Agency.