US Bridges

Il 170 /Fap 786 over Br of Mud Creek

Fair

Livingston County, Illinois · 3.82 MI S of Ill 17 · Structure no. 053016200000000

Built
1990
35 years old
Condition
Fair
inspected February 2023
Type
Slab
Concrete Continuous
Length
59 ft
3 main spans
Daily traffic
1,300
2023 count
Owner
State
State Highway Agency

About this bridge

Il 170 /Fap 786 over Br of Mud Creek is a concrete continuous slab carrying Il 170 /Fap 786 over Br of Mud Creek in Livingston County, Illinois. It was built in 1990, so it is 35 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 5 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 1,300 vehicles a day, roughly 13% of them trucks, projected to reach 1,111 by 2046. The structure is 59 ft (18.1 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesIl 170 /Fap 786
CrossesBr of Mud Creek
Location3.82 MI S of Ill 17
RouteState Highway 170
CountyLivingston County
StateIllinois
Coordinates41.03624, -88.64327
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating38.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length59 ft (18.1 m)
Longest span22 ft (6.7 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2023)
Projected traffic1,111 by 2046
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 170 /Fap 786 over Br of Mud Creek built?

It was built in 1990, making it 35 years old in 2025.

What condition is Il 170 /Fap 786 over Br of Mud 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 February 2023.

How much traffic does Il 170 /Fap 786 over Br of Mud Creek carry?

About 1,300 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is Il 170 /Fap 786 over Br of Mud Creek?

The structure is 59 ft (18.1 m) long with a longest span of 22 ft (6.7 m) and a deck 35 ft wide.

Who owns Il 170 /Fap 786 over Br of Mud Creek?

It is owned by the State Highway Agency.