US Bridges

SR 161 over Hennesseys Bayou Relief

Good

Warren County, Mississippi · Sec 8 T15N R 3E · Structure no. SA7500000000104

Built
2000
25 years old
Condition
Good
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
6 main spans
Daily traffic
2,600
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

SR 161 over Hennesseys Bayou Relief is a prestressed concrete stringer/multi-beam or girder carrying SR 161 over Hennesseys Bayou Relief in Warren County, Mississippi. It was built in 2000, so it is 25 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,600 vehicles a day, roughly 3% of them trucks, projected to reach 3,900 by 2043. The structure is 242 ft (73.8 m) long and 55 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesSR 161
CrossesHennesseys Bayou Relief
LocationSec 8 T15N R 3E
RouteCity Street 0
Coordinates32.28281, -90.91817
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating66.6 US tons
Inventory rating39.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span40 ft (12.2 m)
Deck width55 ft (16.7 m)
Roadway width52 ft (15.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,600 (2021)
Projected traffic3,900 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$2.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 161 over Hennesseys Bayou Relief built?

It was built in 2000, making it 25 years old in 2025.

What condition is SR 161 over Hennesseys Bayou Relief in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does SR 161 over Hennesseys Bayou Relief carry?

About 2,600 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is SR 161 over Hennesseys Bayou Relief?

The structure is 242 ft (73.8 m) long with a longest span of 40 ft (12.2 m) and a deck 55 ft wide.

Who owns SR 161 over Hennesseys Bayou Relief?

It is owned by the City or Municipal Highway Agency.