US Bridges

Marathon RD over Dry Creek

PoorPosted for load

Webster Parish, Louisiana · 1.5 MI S of HWY 160 · Structure no. 046032484932191

Built
1976
49 years old
Condition
Poor
inspected July 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
115 ft
8 main spans
Daily traffic
203
2020 count
Owner
County
County Highway Agency

About this bridge

Marathon RD over Dry Creek is a wood or timber stringer/multi-beam or girder carrying Marathon RD over Dry Creek in Webster Parish, Louisiana. It was built in 1976, so it is 49 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 4 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 203 vehicles a day, projected to reach 223 by 2040. The structure is 115 ft (35.1 m) long and 20 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesMarathon RD
CrossesDry Creek
Location1.5 MI S of HWY 160
RouteCounty Highway 0
Coordinates32.80625, -93.3659
Functional classRural Local

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating17.5 US tons
Inventory rating11.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans8
Design loadH 15
Structure length115 ft (35.1 m)
Longest span16 ft (4.9 m)
Deck width20 ft (6.2 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic203 (2020)
Projected traffic223 by 2040
Trucks—
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

OwnerCounty Highway Agency
Maintained byCounty 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$400,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Marathon RD over Dry Creek built?

It was built in 1976, making it 49 years old in 2025.

What condition is Marathon RD over Dry Creek 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 2023.

How much traffic does Marathon RD over Dry Creek carry?

About 203 vehicles per day (2020 count).

How long is Marathon RD over Dry Creek?

The structure is 115 ft (35.1 m) long with a longest span of 16 ft (4.9 m) and a deck 20 ft wide.

Who owns Marathon RD over Dry Creek?

It is owned by the County Highway Agency.