US Bridges

TR 27/EMERALD Road over Br of Flat Branch

Good

Clinton County, Illinois · 7 MI N of Carlyle · Structure no. 014401300000000

Built
1940
85 years old, rebuilt 1970
Condition
Good
inspected January 2025
Type
Channel Beam
Concrete
Length
22 ft
1 main span
Daily traffic
500
2020 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

TR 27/EMERALD Road over Br of Flat Branch is a concrete channel beam carrying TR 27/EMERALD Road over Br of Flat Branch in Clinton County, Illinois. It was built in 1940 and reconstructed in 1970, so it is 85 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 500 vehicles a day, roughly 14% of them trucks, projected to reach 550 by 2046. The structure is 22 ft (6.7 m) long and 19 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesTR 27/EMERALD Road
CrossesBr of Flat Branch
Location7 MI N of Carlyle
RouteCounty Highway 0
CountyClinton County
StateIllinois
Coordinates38.71223, -89.36463
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating40.7 US tons
Inventory rating24.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans1
Design loadHS 15
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width19 ft (5.7 m)
Roadway width19 ft (5.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2020)
Projected traffic550 by 2046
Trucks14%
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$66,000
NavigationNo navigation control on waterway

Frequently asked questions

When was TR 27/EMERALD Road over Br of Flat Branch built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1970.

What condition is TR 27/EMERALD Road over Br of Flat Branch 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 January 2025.

How much traffic does TR 27/EMERALD Road over Br of Flat Branch carry?

About 500 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is TR 27/EMERALD Road over Br of Flat Branch?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 19 ft wide.

Who owns TR 27/EMERALD Road over Br of Flat Branch?

It is owned by the Town or Township Highway Agency.