US Bridges

County HIGHWAY106 over Big Spring Branch

Good

Marshall County, Alabama · 760 Ft E JCT 79 · Structure no. 004086

Built
1968
57 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
79 ft
5 main spans
Daily traffic
320
1994 count
Owner
County
County Highway Agency

About this bridge

County HIGHWAY106 over Big Spring Branch is a concrete culvert carrying County HIGHWAY106 over Big Spring Branch in Marshall County, Alabama. It was built in 1968, so it is 57 years old, older than the Alabama average of 51.1 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 320 vehicles a day, roughly 1% of them trucks, projected to reach 450 by 2044. The structure is 79 ft (24.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesCounty HIGHWAY106
CrossesBig Spring Branch
Location760 Ft E JCT 79
RouteCounty Highway 64
CountyMarshall County
StateAlabama
Coordinates34.21916, -86.40717
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 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
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating53.5 US tons
Inventory rating31.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 10
Structure length79 ft (24.1 m)
Longest span15 ft (4.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic320 (1994)
Projected traffic450 by 2044
Trucks1%
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

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$664,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County HIGHWAY106 over Big Spring Branch built?

It was built in 1968, making it 57 years old in 2025.

What condition is County HIGHWAY106 over Big Spring Branch 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 September 2024.

How much traffic does County HIGHWAY106 over Big Spring Branch carry?

About 320 vehicles per day (1994 count), of which roughly 1% are trucks.

How long is County HIGHWAY106 over Big Spring Branch?

The structure is 79 ft (24.1 m) long with a longest span of 15 ft (4.6 m).

Who owns County HIGHWAY106 over Big Spring Branch?

It is owned by the County Highway Agency.