US Bridges

Chisholm Trail over Middle Bosque River

PoorClosed to traffic

McLennan County, Texas · 1.3 MI NE of 13th Street · Structure no. 091610AA0174001

Built
1987
38 years old
Condition
Poor
inspected April 2024
Type
Culvert
Concrete
Length
27 ft
3 main spans
Daily traffic
111
2022 count
Owner
County
County Highway Agency

About this bridge

Chisholm Trail over Middle Bosque River is a concrete culvert carrying Chisholm Trail over Middle Bosque River in McLennan County, Texas. It was built in 1987, so it is 38 years old, younger than the Texas average of 44.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 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. Its operating status is: closed to all traffic.

It carries about 111 vehicles a day, projected to reach 70 by 2036. The structure is 27 ft (8.2 m) long and 26 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesChisholm Trail
CrossesMiddle Bosque River
Location1.3 MI NE of 13th Street
RouteCounty Highway 419
StateTexas
Coordinates31.55055, -97.4296
Functional classRural Local

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
Channel and channel protection2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Culvert2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusClosed to all traffic
ScourScour critical; extensive scour has occurred
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment6: Equal to present minimum criteria
Operating rating27 US tons
Inventory rating18 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span8 ft (2.4 m)
Deck width26 ft (8 m)
Roadway width25 ft (7.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2022)
Projected traffic70 by 2036
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$208,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Chisholm Trail over Middle Bosque River built?

It was built in 1987, making it 38 years old in 2025.

What condition is Chisholm Trail over Middle Bosque River 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 April 2024.

How much traffic does Chisholm Trail over Middle Bosque River carry?

About 111 vehicles per day (2022 count).

How long is Chisholm Trail over Middle Bosque River?

The structure is 27 ft (8.2 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns Chisholm Trail over Middle Bosque River?

It is owned by the County Highway Agency.