US Bridges

FAU 8173 College a over Mauvaise Terre CR

Poor

Morgan County, Illinois · .25 MI E Johnson · Structure no. 069315100000000

Built
1975
50 years old
Condition
Poor
inspected May 2022
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
153 ft
3 main spans
Daily traffic
2,150
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8173 College a over Mauvaise Terre CR is a prestressed concrete box beam or girders - multiple carrying FAU 8173 College a over Mauvaise Terre CR in Morgan 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 2,150 vehicles a day, roughly 4% of them trucks, projected to reach 1,919 by 2046. The structure is 153 ft (46.6 m) long and 31 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesFAU 8173 College a
CrossesMauvaise Terre CR
Location.25 MI E Johnson
Coordinates39.73235, -90.20687
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length153 ft (46.6 m)
Longest span51 ft (15.5 m)
Deck width31 ft (9.5 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,150 (2024)
Projected traffic1,919 by 2046
Trucks4%
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

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 8173 College a over Mauvaise Terre CR built?

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

What condition is FAU 8173 College a over Mauvaise Terre CR in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2022.

How much traffic does FAU 8173 College a over Mauvaise Terre CR carry?

About 2,150 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is FAU 8173 College a over Mauvaise Terre CR?

The structure is 153 ft (46.6 m) long with a longest span of 51 ft (15.5 m) and a deck 31 ft wide.

Who owns FAU 8173 College a over Mauvaise Terre CR?

It is owned by the City or Municipal Highway Agency.