Structure 8783 · Limestone County, AL

Tillman Mill RD over Big CR

Carries Tillman Mill RD over Big CR, Sec21 T2s R5w.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 60 ft across with 4 openings. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.

Built196561 years old
Length60.0 ft18.3 m
Daily traffic940counted 2009
Last inspectedMarch 2023every 24 months

Location

StateAlabama
CountyLimestone
LocationSec21 T2s R5w
CarriesTillman Mill RD
CrossesBig CR
Coordinates34.85141, -87.05344

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length60.0 ft (18.3 m)
Max Span12.1 ft (3.7 m)
Deck Width27.9 ft (8.5 m)
Deck Area155.6 sq m
Main Spans4
Year Built1965

Traffic

Avg Daily Traffic940 (2009)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number008783

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

Nearby Bridges