US Bridges

TR 7 over N.F. Crooked Creek

Fair

McDonough County, Illinois · SW-2-T7NR2W · Structure no. 055422800000000

Built
1999
26 years old
Condition
Fair
inspected December 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
121 ft
2 main spans
Daily traffic
200
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 7 over N.F. Crooked Creek is a prestressed concrete box beam or girders - multiple carrying TR 7 over N.F. Crooked Creek in McDonough County, Illinois. It was built in 1999, so it is 26 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 200 vehicles a day, roughly 21% of them trucks, projected to reach 202 by 2046. The structure is 121 ft (37 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 7
CrossesN.F. Crooked Creek
LocationSW-2-T7NR2W
RouteCounty Highway 0
CountyMcDonough County
StateIllinois
Coordinates40.61603, -90.59196
Functional classRural Minor 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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2023
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
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment9: Superior to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length121 ft (37 m)
Longest span59 ft (18.1 m)
Deck width28 ft (8.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic202 by 2046
Trucks21%
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

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 7 over N.F. Crooked Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is TR 7 over N.F. Crooked 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 December 2023.

How much traffic does TR 7 over N.F. Crooked Creek carry?

About 200 vehicles per day (2021 count), of which roughly 21% are trucks.

How long is TR 7 over N.F. Crooked Creek?

The structure is 121 ft (37 m) long with a longest span of 59 ft (18.1 m) and a deck 28 ft wide.

Who owns TR 7 over N.F. Crooked Creek?

It is owned by the Town or Township Highway Agency.