US Bridges

Martin Bluff Road over Relief

Good

Jackson County, Mississippi · Sec 1 T 7S R 7W · Structure no. SA3000000000222

Built
2021
4 years old
Condition
Good
inspected October 2024
Type
Channel Beam
Concrete
Length
93 ft
3 main spans
Daily traffic
500
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Martin Bluff Road over Relief is a concrete channel beam carrying Martin Bluff Road over Relief in Jackson County, Mississippi. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, roughly 10% of them trucks, projected to reach 800 by 2044. The structure is 93 ft (28.3 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesMartin Bluff Road
CrossesRelief
LocationSec 1 T 7S R 7W
RouteCity Street 0
Coordinates30.46318, -88.63994
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length93 ft (28.3 m)
Longest span31 ft (9.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2024)
Projected traffic800 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Martin Bluff Road over Relief built?

It was built in 2021, making it 4 years old in 2025.

What condition is Martin Bluff Road over 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 October 2024.

How much traffic does Martin Bluff Road over Relief carry?

About 500 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Martin Bluff Road over Relief?

The structure is 93 ft (28.3 m) long with a longest span of 31 ft (9.4 m) and a deck 32 ft wide.

Who owns Martin Bluff Road over Relief?

It is owned by the City or Municipal Highway Agency.