US Bridges

Il 29 over Cantrall Creek

Fair

Sangamon County, Illinois · .76M N Andrew Rd. · Structure no. 084202800000000

Built
1993
32 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
6,250
2023 count
Owner
State
State Highway Agency

About this bridge

Il 29 over Cantrall Creek is a concrete culvert carrying Il 29 over Cantrall Creek in Sangamon County, Illinois. It was built in 1993, so it is 32 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 6,250 vehicles a day, roughly 3% of them trucks, projected to reach 6,464 by 2046. The structure is 40 ft (12.1 m) long. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesIl 29
CrossesCantrall Creek
Location.76M N Andrew Rd.
RouteState Highway 29
CountySangamon County
StateIllinois
Coordinates39.90634, -89.67346
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating98.2 US tons
Inventory rating63.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.1 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,250 (2023)
Projected traffic6,464 by 2046
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

OwnerState Highway Agency
Maintained byState 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 Il 29 over Cantrall Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is Il 29 over Cantrall Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in November 2023.

How much traffic does Il 29 over Cantrall Creek carry?

About 6,250 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Il 29 over Cantrall Creek?

The structure is 40 ft (12.1 m) long with a longest span of 12 ft (3.7 m).

Who owns Il 29 over Cantrall Creek?

It is owned by the State Highway Agency.