US Bridges

Olds Road over Dodge Brook

Good

Sullivan County, New Hampshire · 0.3 MI E Nh 10 · Structure no. 014600960008100

Built
2022
3 years old
Condition
Good
inspected September 2023
Type
Slab
Concrete
Length
39 ft
1 main span
Daily traffic
96
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Olds Road over Dodge Brook is a concrete slab carrying Olds Road over Dodge Brook in Sullivan County, New Hampshire. It was built in 2022, so it is 3 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 96 vehicles a day, projected to reach 142 by 2043. The structure is 39 ft (12 m) long and 21 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesOlds Road
CrossesDodge Brook
Location0.3 MI E Nh 10
CountySullivan County
StateNew Hampshire
Coordinates43.20999, -72.18619
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.
Substructure9 ExcellentNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.2 US tons
Inventory rating16.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length39 ft (12 m)
Longest span37 ft (11.4 m)
Deck width21 ft (6.5 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic96 (2023)
Projected traffic142 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Olds Road over Dodge Brook built?

It was built in 2022, making it 3 years old in 2025.

What condition is Olds Road over Dodge 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 September 2023.

How much traffic does Olds Road over Dodge Brook carry?

About 96 vehicles per day (2023 count).

How long is Olds Road over Dodge Brook?

The structure is 39 ft (12 m) long with a longest span of 37 ft (11.4 m) and a deck 21 ft wide.

Who owns Olds Road over Dodge Brook?

It is owned by the City or Municipal Highway Agency.