US Bridges

Fdr 155 over Guynes Branch

Fair

Grant Parish, Louisiana · No Data Entered · Structure no. 080601000002160

Built
1962
63 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
46 ft
3 main spans
Daily traffic
15
1979 count
Owner
Federal
U.S. Forest Service

About this bridge

Fdr 155 over Guynes Branch is a wood or timber stringer/multi-beam or girder carrying Fdr 155 over Guynes Branch in Grant Parish, Louisiana. It was built in 1962, so it is 63 years old, older than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 15 vehicles a day, projected to reach 22 by 2045. The structure is 46 ft (14 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesFdr 155
CrossesGuynes Branch
LocationNo Data Entered
RouteFederal Lands Road 155.4
CountyGrant Parish
StateLouisiana
Coordinates31.70662, -92.60708
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating35.1 US tons
Inventory rating27.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20
Structure length46 ft (14 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (1979)
Projected traffic22 by 2045
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 155 over Guynes Branch built?

It was built in 1962, making it 63 years old in 2025.

What condition is Fdr 155 over Guynes Branch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Fdr 155 over Guynes Branch carry?

About 15 vehicles per day (1979 count).

How long is Fdr 155 over Guynes Branch?

The structure is 46 ft (14 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns Fdr 155 over Guynes Branch?

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