US Bridges

LA1207 over Dyson Creek

Good

Rapides Parish, Louisiana · 4.0 Mi. NW of LA 115 · Structure no. 084003670104001

Built
2003
22 years old
Condition
Good
inspected December 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
5,494
2021 count
Owner
State
State Highway Agency

About this bridge

LA1207 over Dyson Creek is a concrete culvert carrying LA1207 over Dyson Creek in Rapides Parish, Louisiana. It was built in 2003, so it is 22 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,494 vehicles a day, roughly 14% of them trucks, projected to reach 6,043 by 2041. The structure is 27 ft (8.2 m) long and 96 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesLA1207
CrossesDyson Creek
Location4.0 Mi. NW of LA 115
RouteState Highway 1207
Coordinates31.38163, -92.2268
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width96 ft (29.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,494 (2021)
Projected traffic6,043 by 2041
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was LA1207 over Dyson Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is LA1207 over Dyson 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 December 2024.

How much traffic does LA1207 over Dyson Creek carry?

About 5,494 vehicles per day (2021 count), of which roughly 14% are trucks.

How long is LA1207 over Dyson Creek?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 96 ft wide.

Who owns LA1207 over Dyson Creek?

It is owned by the State Highway Agency.