US Bridges

Narretto Road over Brushy Branch

Poor

Tangipahoa Parish, Louisiana · 0.8 Miles NE of LA 443 · Structure no. 625330353902301

Built
1975
50 years old
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
27 ft
2 main spans
Daily traffic
359
2020 count
Owner
County
County Highway Agency

About this bridge

Narretto Road over Brushy Branch is a wood or timber stringer/multi-beam or girder carrying Narretto Road over Brushy Branch in Tangipahoa Parish, Louisiana. It was built in 1975, so it is 50 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 359 vehicles a day, projected to reach 394 by 2040. The structure is 27 ft (8.2 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesNarretto Road
CrossesBrushy Branch
Location0.8 Miles NE of LA 443
RouteCounty Highway 0
Coordinates30.58834, -90.38397
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
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.1 US tons
Inventory rating25 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length27 ft (8.2 m)
Longest span13 ft (4 m)
Deck width27 ft (8.2 m)
Roadway width24 ft (7.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic359 (2020)
Projected traffic394 by 2040
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

OwnerCounty Highway Agency
Maintained byCounty 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 Narretto Road over Brushy Branch built?

It was built in 1975, making it 50 years old in 2025.

What condition is Narretto Road over Brushy Branch 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 August 2023.

How much traffic does Narretto Road over Brushy Branch carry?

About 359 vehicles per day (2020 count).

How long is Narretto Road over Brushy Branch?

The structure is 27 ft (8.2 m) long with a longest span of 13 ft (4 m) and a deck 27 ft wide.

Who owns Narretto Road over Brushy Branch?

It is owned by the County Highway Agency.