US Bridges

Ms #6400B Main Ext over Trib Ackerman CR

Fair

Tazewell County, Illinois · SW 1/4 4T25N R3W · Structure no. 090608200000000

Built
1974
51 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete Continuous
Length
37 ft
2 main spans
Daily traffic
2,050
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

Ms #6400B Main Ext over Trib Ackerman CR is a concrete continuous culvert carrying Ms #6400B Main Ext over Trib Ackerman CR in Tazewell County, Illinois. It was built in 1974, so it is 51 years old, older 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 2,050 vehicles a day, projected to reach 1,717 by 2046. The structure is 37 ft (11.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesMs #6400B Main Ext
CrossesTrib Ackerman CR
LocationSW 1/4 4T25N R3W
RouteCity Street 0
CountyTazewell County
StateIllinois
Coordinates40.64559, -89.45329
Functional classUrban Collector

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 protection6 SatisfactoryStructural elements show some minor deterioration.
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 adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating59.3 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadUnknown
Structure length37 ft (11.2 m)
Longest span18 ft (5.6 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,050 (2023)
Projected traffic1,717 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$114,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Ms #6400B Main Ext over Trib Ackerman CR built?

It was built in 1974, making it 51 years old in 2025.

What condition is Ms #6400B Main Ext over Trib Ackerman CR 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 Ms #6400B Main Ext over Trib Ackerman CR carry?

About 2,050 vehicles per day (2023 count).

How long is Ms #6400B Main Ext over Trib Ackerman CR?

The structure is 37 ft (11.2 m) long with a longest span of 18 ft (5.6 m).

Who owns Ms #6400B Main Ext over Trib Ackerman CR?

It is owned by the City or Municipal Highway Agency.