US Bridges

Fdr 145 over Dyson Creek

PoorPosted for load

Grant Parish, Louisiana · No Data Entered · Structure no. 080601000002144

Built
1972
53 years old
Condition
Poor
inspected December 2024
Type
Channel Beam
Prestressed Concrete
Length
44 ft
2 main spans
Daily traffic
30
2003 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 145 over Dyson Creek is a prestressed concrete channel beam carrying Fdr 145 over Dyson Creek in Grant Parish, Louisiana. It was built in 1972, so it is 53 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 3 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 30 vehicles a day, projected to reach 45 by 2045. The structure is 44 ft (13.4 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesFdr 145
CrossesDyson Creek
LocationNo Data Entered
RouteFederal Lands Road 145.2
CountyGrant Parish
StateLouisiana
Coordinates31.54556, -92.46126
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.8 US tons
Inventory rating19.3 US tons

Structure

Structure typeChannel Beam
MaterialPrestressed Concrete
DeckOther
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span22 ft (6.7 m)
Deck width25 ft (7.6 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2003)
Projected traffic45 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Fdr 145 over Dyson Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is Fdr 145 over Dyson 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 December 2024.

How much traffic does Fdr 145 over Dyson Creek carry?

About 30 vehicles per day (2003 count).

How long is Fdr 145 over Dyson Creek?

The structure is 44 ft (13.4 m) long with a longest span of 22 ft (6.7 m) and a deck 25 ft wide.

Who owns Fdr 145 over Dyson Creek?

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