US Bridges

TR 84B over Ida Creek

Fair

Livingston County, Illinois · 2395N 1100E · Structure no. 053342100000000

Built
1975
50 years old
Condition
Fair
inspected August 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
20
2023 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 84B over Ida Creek is a concrete slab carrying TR 84B over Ida Creek 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 20 vehicles a day, roughly 20% of them trucks, projected to reach 25 by 2046. The structure is 33 ft (10.1 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesTR 84B
CrossesIda Creek
Location2395N 1100E
RouteCounty Highway 0
CountyLivingston County
StateIllinois
Coordinates40.97492, -88.71986
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
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 adequacy7: Better than 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 loadH 15
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2023)
Projected traffic25 by 2046
Trucks20%
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 84B over Ida Creek built?

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

What condition is TR 84B over Ida 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 August 2023.

How much traffic does TR 84B over Ida Creek carry?

About 20 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is TR 84B over Ida Creek?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 26 ft wide.

Who owns TR 84B over Ida Creek?

It is owned by the Town or Township Highway Agency.