US Bridges

Hamilton RD over Dairy Creek

Good

West Feliciana Parish, Louisiana · 3.8 Mi. NE of US 61 · Structure no. 616300000616311

Built
2022
3 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
70 ft
4 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Hamilton RD over Dairy Creek is a wood or timber stringer/multi-beam or girder carrying Hamilton RD over Dairy Creek in West Feliciana Parish, Louisiana. It was built in 2022, so it is 3 years old, younger than the Louisiana average of 43 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 40 vehicles a day, projected to reach 44 by 2040. The structure is 70 ft (21.3 m) long and 20 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesHamilton RD
CrossesDairy Creek
Location3.8 Mi. NE of US 61
RouteCounty Highway 0
CountyWest Feliciana Parish
StateLouisiana
Coordinates30.94752, -91.3265
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating28 US tons
Inventory rating21.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadHS 20
Structure length70 ft (21.3 m)
Longest span17 ft (5.2 m)
Deck width20 ft (6.1 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic44 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamilton RD over Dairy Creek built?

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

What condition is Hamilton RD over Dairy 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 September 2024.

How much traffic does Hamilton RD over Dairy Creek carry?

About 40 vehicles per day (2020 count).

How long is Hamilton RD over Dairy Creek?

The structure is 70 ft (21.3 m) long with a longest span of 17 ft (5.2 m) and a deck 20 ft wide.

Who owns Hamilton RD over Dairy Creek?

It is owned by the County Highway Agency.