US Bridges

N. Jackson RD over Evans Br.

PoorPosted for load

Tangipahoa Parish, Louisiana · 1.8 MI SW of JCT 106 · Structure no. 625330485902301

Built
1975
50 years old
Condition
Poor
inspected August 2023
Type
Slab
Concrete
Length
39 ft
2 main spans
Daily traffic
57
2019 count
Owner
County
County Highway Agency

About this bridge

N. Jackson RD over Evans Br. is a concrete slab carrying N. Jackson RD over Evans Br. 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. Its operating status is: posted for load restriction.

It carries about 57 vehicles a day, projected to reach 62 by 2039. The structure is 39 ft (11.9 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesN. Jackson RD
CrossesEvans Br.
Location1.8 MI SW of JCT 106
RouteCounty Highway 0
CountyTangipahoa Parish
StateLouisiana
Coordinates30.80791, -90.38371
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating25 US tons
Inventory rating19.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans2
Design loadH 15
Structure length39 ft (11.9 m)
Longest span19 ft (5.8 m)
Deck width25 ft (7.5 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic57 (2019)
Projected traffic62 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$163,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N. Jackson RD over Evans Br. built?

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

What condition is N. Jackson RD over Evans Br. 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 N. Jackson RD over Evans Br. carry?

About 57 vehicles per day (2019 count).

How long is N. Jackson RD over Evans Br.?

The structure is 39 ft (11.9 m) long with a longest span of 19 ft (5.8 m) and a deck 25 ft wide.

Who owns N. Jackson RD over Evans Br.?

It is owned by the County Highway Agency.