US302:NH 10:NH 18 over AMMONOOSUC RIVER (Route: 302)
Num:15302130005400x
Open: no restriction [A]
Built: 1950, Reconstructed: 1987
Historic: Bridge is possibly eligible for the NRHP. [3]

Google Streetview (If Available)

Rough Distance: 0.2 Miles (0.3 Kilometers)

Bridge Type
Main Span(s): Steel [3] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 47.2 m = 154.9 ft
Main Spans: 2 at 21.9 m = 71.9 ft
Approach Spans: 0
Skew: 0
Width, Roadway: 13.1 m = 43.0 ft (2 Lanes) and Out-To-Out: 16.9 m = 55.4 ft for a 15.2 m = 49.9 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Littleton [42580]: Grafton County [009], New Hampshire [33]
Owned by State Highway Agency [01], DOT District: 1
3.9 MI LISBON TL

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: M 18 / H 20 [4]
Operating: 65.1 metric ton = 71.6 tons (Load Factor(LF) [1])
Inventory: 39 metric ton = 42.9 tons (Load Factor(LF) [1])

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Somewhat better than minimum adequacy to tolerate being left in place as is [5]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge is scour critical; bridge foundations determined to be unstable. [3]
Inspections
Date: August 2020 [0820] and Frequency: 24

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.5 km = 0.3 mi
Traffic
ADT: 8109 (2019) and Trucks: 4%
Future ADT: 12001 (In 2041 )

BEACON STREET over AMMONOOSUC RIVER (Route: 0)
Num:15302200005600x
Open: no restriction [A]
Built: 2000, Reconstructed: N/A [0000]
Historic: Bridge is not eligible for the NRHP. [5]

Google Streetview (If Available)

Rough Distance: 0.3 Miles (0.4 Kilometers)

Bridge Type
Main Span(s): Steel continuous [4] Stringer/Multi-beam or girder [02]
Approach Span(s): Other [00]
Deck: Concrete Cast-in-Place [1] with Wearing Surface: Bituminous [6]

Bridge Dimensions
Length: 53.3 m = 174.9 ft
Main Spans: 1 at 51.1 m = 167.7 ft
Approach Spans: 0
Skew: 25
Width, Roadway: 10.7 m = 35.1 ft (2 Lanes) and Out-To-Out: 13.4 m = 44.0 ft for a 9.7 m = 31.8 ft approaching roadway.
Vertical Clearance: 99.99 m = 328.1 ft and Navigational Clearance: 0 = N/A

Location
Littleton [42580]: Grafton County [009], New Hampshire [33]
Owned by City or Municipal Highway Agency [04], DOT District: 1
0.03 MI FROM NH RTE 116

Condition
Deck: Good [7]
Superstructure: Good [7]
Substructure: Good [7]
Loading
Design: MS 22.5 / HS 25 or greater [9]
Operating: 68 metric ton = 74.8 tons ()
Inventory: 40.8 metric ton = 44.9 tons ()

Appraisal
Structural: Better than present minimum criteria [7]
Deck Geometry: Better than present minimum criteria [7]
Road Alignment: Equal to present desirable criteria [8]
Waterway: Superior to present desirable criteria [9] and Bridge foundations determined to be stable for the assessed or calculated scour condition. [8]
Inspections
Date: April 1999 [499] and Frequency: 24

Future Work
Work Needed: Replacement of bridge or other structure because of substandard load carrying capacity or substantial bridge roadway geometry. [31]
Bridge Detour: 0.2 km = 0.1 mi
Traffic
ADT: 314 (2019) and Trucks: 4%
Future ADT: 464 (In 2041 )