US Bridges

FAU 9172 over Engle Creek Branch

Fair

St. Clair County, Illinois · 2.20 MI N US 50 · Structure no. 082500600000000

Built
1963
62 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
34 ft
2 main spans
Daily traffic
4,400
2023 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 9172 over Engle Creek Branch is a steel culvert carrying FAU 9172 over Engle Creek Branch in St. Clair County, Illinois. It was built in 1963, so it is 62 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 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 4,400 vehicles a day, roughly 3% of them trucks, projected to reach 5,101 by 2046. The structure is 34 ft (10.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAU 9172
CrossesEngle Creek Branch
Location2.20 MI N US 50
CountySt. Clair County
StateIllinois
Coordinates38.61237, -89.89239
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 protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating56.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadUnknown
Structure length34 ft (10.4 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,400 (2023)
Projected traffic5,101 by 2046
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 9172 over Engle Creek Branch built?

It was built in 1963, making it 62 years old in 2025.

What condition is FAU 9172 over Engle Creek Branch 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 FAU 9172 over Engle Creek Branch carry?

About 4,400 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is FAU 9172 over Engle Creek Branch?

The structure is 34 ft (10.4 m) long with a longest span of 16 ft (4.9 m).

Who owns FAU 9172 over Engle Creek Branch?

It is owned by the City or Municipal Highway Agency.