US Bridges

TR 121A over 5 Mile CR

Fair

Livingston County, Illinois · 3255 E 1900 N · Structure no. 053341900000000

Built
1975
50 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
30 ft
1 main span
Daily traffic
25
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 121A over 5 Mile CR is a concrete slab carrying TR 121A over 5 Mile CR in Livingston County, Illinois. It was built in 1975, so it is 50 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 25 vehicles a day, projected to reach 25 by 2046. The structure is 30 ft (9.1 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 121A
Crosses5 Mile CR
Location3255 E 1900 N
RouteCounty Highway 0
CountyLivingston County
StateIllinois
Coordinates40.9066, -88.30956
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53.2 US tons
Inventory rating31.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 15
Structure length30 ft (9.1 m)
Longest span28 ft (8.5 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic25 (2023)
Projected traffic25 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 TR 121A over 5 Mile CR built?

It was built in 1975, making it 50 years old in 2025.

What condition is TR 121A over 5 Mile 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 June 2024.

How much traffic does TR 121A over 5 Mile CR carry?

About 25 vehicles per day (2023 count).

How long is TR 121A over 5 Mile CR?

The structure is 30 ft (9.1 m) long with a longest span of 28 ft (8.5 m) and a deck 26 ft wide.

Who owns TR 121A over 5 Mile CR?

It is owned by the Town or Township Highway Agency.