US Bridges

Fdr 337 over Middle Creek

Poor

Natchitoches Parish, Louisiana · National Forest Road · Structure no. 080603000002309

Built
1970
55 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
61 ft
4 main spans
Daily traffic
30
1976 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 337 over Middle Creek is a wood or timber stringer/multi-beam or girder carrying Fdr 337 over Middle Creek in Natchitoches Parish, Louisiana. It was built in 1970, so it is 55 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.

It carries about 30 vehicles a day, projected to reach 100 by 2010. The structure is 61 ft (18.6 m) long and 16 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesFdr 337
CrossesMiddle Creek
LocationNational Forest Road
RouteFederal Lands Road 337.1
Coordinates31.48476, -93.21886
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
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating43.5 US tons
Inventory rating33.6 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans4
Design loadH 15
Structure length61 ft (18.6 m)
Longest span16 ft (4.9 m)
Deck width16 ft (4.8 m)
Roadway width14 ft (4.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (1976)
Projected traffic100 by 2010
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$140 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 337 over Middle Creek built?

It was built in 1970, making it 55 years old in 2025.

What condition is Fdr 337 over Middle 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 February 2024.

How much traffic does Fdr 337 over Middle Creek carry?

About 30 vehicles per day (1976 count).

How long is Fdr 337 over Middle Creek?

The structure is 61 ft (18.6 m) long with a longest span of 16 ft (4.9 m) and a deck 16 ft wide.

Who owns Fdr 337 over Middle Creek?

It is owned by the U.S. Forest Service.