US Bridges

US0080 over Bayou Macon

PoorPosted for load

Madison Parish, Louisiana · .7 MI East of LA 17 · Structure no. 053300020400001

Built
1955
70 years old
Condition
Poor
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
423 ft
10 main spans
Daily traffic
1,451
2021 count
Owner
State
State Highway Agency

About this bridge

US0080 over Bayou Macon is a steel stringer/multi-beam or girder carrying US0080 over Bayou Macon in Madison Parish, Louisiana. It was built in 1955, so it is 70 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,451 vehicles a day, roughly 15% of them trucks, projected to reach 1,596 by 2041. The structure is 423 ft (128.9 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS0080
CrossesBayou Macon
Location.7 MI East of LA 17
RouteU.S. Route 80
Coordinates32.45801, -91.4769
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Superstructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.8 US tons
Inventory rating13.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length423 ft (128.9 m)
Longest span81 ft (24.7 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,451 (2021)
Projected traffic1,596 by 2041
Trucks15%
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$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US0080 over Bayou Macon built?

It was built in 1955, making it 70 years old in 2025.

What condition is US0080 over Bayou Macon in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in July 2024.

How much traffic does US0080 over Bayou Macon carry?

About 1,451 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is US0080 over Bayou Macon?

The structure is 423 ft (128.9 m) long with a longest span of 81 ft (24.7 m) and a deck 33 ft wide.

Who owns US0080 over Bayou Macon?

It is owned by the State Highway Agency.