US Bridges

Kelli Road over Flat River

Good

Bossier Parish, Louisiana · 0.8 MI SE of LA 157 · Structure no. 040800000040802

Built
2020
5 years old
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
135 ft
9 main spans
Daily traffic
10
2020 count
Owner
County
County Highway Agency

About this bridge

Kelli Road over Flat River is a wood or timber stringer/multi-beam or girder carrying Kelli Road over Flat River in Bossier Parish, Louisiana. It was built in 2020, so it is 5 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 10 vehicles a day, projected to reach 11 by 2040. The structure is 135 ft (41.1 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

Open in Google Maps
CarriesKelli Road
CrossesFlat River
Location0.8 MI SE of LA 157
RouteCounty Highway 0
CountyBossier Parish
StateLouisiana
Coordinates32.32341, -93.51458
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating33.7 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans9
Design loadH 10
Structure length135 ft (41.1 m)
Longest span15 ft (4.6 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic11 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 Kelli Road over Flat River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Kelli Road over Flat River 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 December 2024.

How much traffic does Kelli Road over Flat River carry?

About 10 vehicles per day (2020 count).

How long is Kelli Road over Flat River?

The structure is 135 ft (41.1 m) long with a longest span of 15 ft (4.6 m) and a deck 26 ft wide.

Who owns Kelli Road over Flat River?

It is owned by the County Highway Agency.