US Bridges

Nh 18 NH116 over Indian Creek

Good

Grafton County, New Hampshire · 0.80 Mile S. Beth. Tl. · Structure no. 024552120012600

Built
2017
8 years old
Condition
Good
inspected August 2023
Type
Slab
Prestressed Concrete
Length
28 ft
1 main span
Daily traffic
1,167
2023 count
Owner
State
State Highway Agency

About this bridge

Nh 18 NH116 over Indian Creek is a prestressed concrete slab carrying Nh 18 NH116 over Indian Creek in Grafton County, New Hampshire. It was built in 2017, so it is 8 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 1,167 vehicles a day, roughly 6% of them trucks, projected to reach 1,727 by 2043. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesNh 18 NH116
CrossesIndian Creek
Location0.80 Mile S. Beth. Tl.
RouteState Highway 18
Coordinates44.24649, -71.7627
Functional classRural Minor Collector

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 protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable 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 rating55.8 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length28 ft (8.5 m)
Longest span22 ft (6.7 m)
Deck width32 ft (9.8 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,167 (2023)
Projected traffic1,727 by 2043
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

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 Nh 18 NH116 over Indian Creek built?

It was built in 2017, making it 8 years old in 2025.

What condition is Nh 18 NH116 over Indian Creek 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 Nh 18 NH116 over Indian Creek carry?

About 1,167 vehicles per day (2023 count), of which roughly 6% are trucks.

How long is Nh 18 NH116 over Indian Creek?

The structure is 28 ft (8.5 m) long with a longest span of 22 ft (6.7 m) and a deck 32 ft wide.

Who owns Nh 18 NH116 over Indian Creek?

It is owned by the State Highway Agency.