US Bridges

Hudson ST over Coburn Creek

PoorPosted for load

Washington Parish, Louisiana · .1 Mi. N of Hwy. 10 · Structure no. 625930478895241

Built
1970
55 years old
Condition
Poor
inspected February 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
107 ft
6 main spans
Daily traffic
703
2020 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hudson ST over Coburn Creek is a wood or timber stringer/multi-beam or girder carrying Hudson ST over Coburn Creek in Washington 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. Its operating status is: posted for load restriction.

It carries about 703 vehicles a day, projected to reach 773 by 2040. The structure is 107 ft (32.6 m) long and 22 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesHudson ST
CrossesCoburn Creek
Location.1 Mi. N of Hwy. 10
RouteCounty Highway 0
CountyWashington Parish
StateLouisiana
Coordinates30.79687, -89.87516
Functional classUrban 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.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating16 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans6
Design loadH 10
Structure length107 ft (32.6 m)
Longest span18 ft (5.5 m)
Deck width22 ft (6.8 m)
Roadway width20 ft (6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic703 (2020)
Projected traffic773 by 2040
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Hudson ST over Coburn Creek built?

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

What condition is Hudson ST over Coburn 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 Hudson ST over Coburn Creek carry?

About 703 vehicles per day (2020 count).

How long is Hudson ST over Coburn Creek?

The structure is 107 ft (32.6 m) long with a longest span of 18 ft (5.5 m) and a deck 22 ft wide.

Who owns Hudson ST over Coburn Creek?

It is owned by the City or Municipal Highway Agency.