US Bridges

Donaldson Ave over Horse Bayou/Donaldson ST

PoorClosed to traffic

Morehouse Parish, Louisiana · .1 Mi. E. Int. 014 · Structure no. 053432476915191

Built
1978
47 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
45 ft
3 main spans
Daily traffic
100
1979 count
Owner
City
City or Municipal Highway Agency

About this bridge

Donaldson Ave over Horse Bayou/Donaldson ST is a wood or timber stringer/multi-beam or girder carrying Donaldson Ave over Horse Bayou/Donaldson ST in Morehouse Parish, Louisiana. It was built in 1978, so it is 47 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 1 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: closed to all traffic.

It carries about 100 vehicles a day, projected to reach 110 by 1999. The structure is 45 ft (13.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesDonaldson Ave
CrossesHorse Bayou/Donaldson ST
Location.1 Mi. E. Int. 014
RouteCounty Highway 0
CountyMorehouse Parish
StateLouisiana
Coordinates32.79112, -91.89528
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure1 Imminent FailureMajor deterioration or section loss present in critical structural components. Bridge is closed to traffic but corrective action may put it back in light service.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusClosed to all traffic
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation0: Immediate repair necessary to put back in service
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12 US tons
Inventory rating8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width24 ft (7.2 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deck20 ft (6.1 m)

Traffic and service

Average daily traffic100 (1979)
Projected traffic110 by 1999
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$181,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Donaldson Ave over Horse Bayou/Donaldson ST built?

It was built in 1978, making it 47 years old in 2025.

What condition is Donaldson Ave over Horse Bayou/Donaldson ST 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 November 2024.

How much traffic does Donaldson Ave over Horse Bayou/Donaldson ST carry?

About 100 vehicles per day (1979 count).

How long is Donaldson Ave over Horse Bayou/Donaldson ST?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 24 ft wide.

Who owns Donaldson Ave over Horse Bayou/Donaldson ST?

It is owned by the City or Municipal Highway Agency.