BridgeSafety
Montgomery County, TX · Structure #121700011004386

IH 45

IH 45 in 1.15 MI S Of Sh 242, Montgomery County, Texas received a condition grade of F (0/100). Built in 2001, the bridge carries 171K vehicles daily on IH 45 over Carters Slough Trib. It is classified as structurally deficient.

F
0/100
0
Condition Score
171K
Daily Traffic
2001
Year Built
11.3m
Length

Component Ratings

DeckSerious
0/9

The riding surface — evaluated for cracking, spalling, and wear

SuperstructureSerious
0/9

Beams, girders, and trusses that support the deck

SubstructureSerious
0/9

Piers, abutments, and foundations below the deck

Bridge Details

Road
IH 45
Crosses Over
Carters Slough Trib
State
Texas
County
Montgomery County
Location
1.15 MI S Of Sh 242
Year Built
2001
Age
25 years
Daily Traffic
170,688
Lanes
14
Length
11.3 meters
Owner
State Highway Agency
Structure Number
121700011004386

About This Bridge

IH 45 is a 25-year-old bridge located 1.15 MI S Of Sh 242 in Montgomery County, Texas. The bridge carries IH 45 over Carters Slough Trib with 14 traffic lanes, handling approximately 171K vehicles per day. Built in 2001, the structure spans 11.3 meters.

The bridge received a Condition Grade of F (0/100) based on Federal Highway Administration inspection data. Its deck is rated 0/9 (serious), superstructure 0/9 (serious), and substructure 0/9 (serious). The bridge is classified as structurally deficient, meaning at least one major component is rated 4 or below — this signals a need for repair or replacement but does not necessarily indicate an immediate safety hazard.

This bridge is owned and maintained by State Highway Agency.

Location Map

1.15 MI S Of Sh 242, Montgomery County, Texas

30.190836, -95.452850

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Frequently Asked Questions

IH 45 has a Condition Score of 0/100 (Grade F). Its deck is rated 0/9, superstructure 0/9, and substructure 0/9 on the NBI scale. The bridge is classified as structurally deficient.

IH 45 was built in 2001, making it 25 years old. The average bridge age in the United States is 48 years.

IH 45 carries approximately 171K vehicles per day (average daily traffic). The bridge has 14 traffic lanes. It is 11.3 meters long and located on IH 45 in 1.15 MI S Of Sh 242, Montgomery County, Texas.

Yes, IH 45 is classified as structurally deficient because at least one of its primary components (deck, superstructure, or substructure) is rated 4 or below on the 0-9 NBI scale. This does not necessarily mean it is unsafe, but it requires significant repair or replacement.

IH 45 is located 1.15 MI S Of Sh 242 in Montgomery County, Texas. The bridge carries IH 45 over Carters Slough Trib. Its coordinates are 30.190836, -95.452850. It is maintained by State Highway Agency.

IH 45 carries IH 45 over Carters Slough Trib. The bridge is 11.3 meters long and was built in 2001.

Last updated:

Condition Score is calculated from deck (33%), superstructure (33%), and substructure (34%) NBI ratings with an age penalty for bridges over 50 years.