US Bridges

TR 127 over Rock Creek

Good

McDonough County, Illinois · NE-21-T6NR4W · Structure no. 055450900000000

Built
1992
33 years old
Condition
Good
inspected December 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
50
2016 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 127 over Rock Creek is a prestressed concrete box beam or girders - multiple carrying TR 127 over Rock Creek in McDonough County, Illinois. It was built in 1992, so it is 33 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 50 vehicles a day, projected to reach 51 by 2046. The structure is 52 ft (15.7 m) long and 24 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTR 127
CrossesRock Creek
LocationNE-21-T6NR4W
RouteCounty Highway 0
Coordinates40.50324, -90.85427
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length52 ft (15.7 m)
Longest span49 ft (14.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2016)
Projected traffic51 by 2046
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 127 over Rock Creek built?

It was built in 1992, making it 33 years old in 2025.

What condition is TR 127 over Rock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.

How much traffic does TR 127 over Rock Creek carry?

About 50 vehicles per day (2016 count).

How long is TR 127 over Rock Creek?

The structure is 52 ft (15.7 m) long with a longest span of 49 ft (14.9 m) and a deck 24 ft wide.

Who owns TR 127 over Rock Creek?

It is owned by the Town or Township Highway Agency.