US Bridges

CR 177 over Seven Mile Creek

Good

Alcorn County, Mississippi · Sec 30 T 1S R 9E · Structure no. SA0200000000031

Built
1997
28 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
200 ft
500 main spans
Daily traffic
178
2024 count
Owner
County
County Highway Agency

About this bridge

CR 177 over Seven Mile Creek is a prestressed concrete stringer/multi-beam or girder carrying CR 177 over Seven Mile Creek in Alcorn County, Mississippi. It was built in 1997, so it is 28 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 178 vehicles a day, roughly 8% of them trucks, projected to reach 263 by 2043. The structure is 200 ft (61 m) long and 30 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCR 177
CrossesSeven Mile Creek
LocationSec 30 T 1S R 9E
RouteCounty Highway 69
Coordinates34.96028, -88.38194
Functional classRural Local

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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating75.3 US tons
Inventory rating33.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans500
Design loadHS 20
Structure length200 ft (61 m)
Longest span39 ft (12 m)
Deck width30 ft (9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic178 (2024)
Projected traffic263 by 2043
Trucks8%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 CR 177 over Seven Mile Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is CR 177 over Seven Mile Creek 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 August 2024.

How much traffic does CR 177 over Seven Mile Creek carry?

About 178 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is CR 177 over Seven Mile Creek?

The structure is 200 ft (61 m) long with a longest span of 39 ft (12 m) and a deck 30 ft wide.

Who owns CR 177 over Seven Mile Creek?

It is owned by the County Highway Agency.