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The LPMS Data Web Services provides data via Extensible Markup Language (XML) for the Lock Queue Report (past 24 hours), the Tonnage Report and the Traffic Report (past 30 days). As of 7/6/2016, the MMSI element has been added.

The following is the URL calling sequence for the Lock Queue Report (past 24 hours):

https://corpslocks.usace.army.mil/lpwb/xml.lockqueue?in_river={river}&in_lock={lock}

where:

{river} is the 2-char river code and
{lock} is the 2-char lock no.

Try it here:

https://corpslocks.usace.army.mil/lpwb/xml.lockqueue?in_river=GI&in_lock=01

The following is the URL calling sequence for the Tonnage Report:

https://corpslocks.usace.army.mil/lpwb/xml.tonnage?in_river={river}&in_lock={lock}&in_mon_yr={mon_yr}

where:

{river} is the 2-char river code and
{lock} is the 2-char lock no
{mon_yr} is the 2-digit month and 4-digit year for the requested month.

Try it here:

https://corpslocks.usace.army.mil/lpwb/xml.tonnage?in_river=GI&in_lock=01&in_mon_yr=012021

The following is the URL calling sequence for the Traffic Report (past 30 days):

https://corpslocks.usace.army.mil/lpwb/xml.traffic?in_river={river}&in_lock={lock}

where:

{river} is the 2-char river code
{lock} is the 2-char lock no

Try it here:

https://corpslocks.usace.army.mil/lpwb/xml.traffic?in_river=GI&in_lock=01

The LPMS Data Web Services provides data via JSON (JavaScript Object Notation) for the Active or Future Stoppages Report and the Locks with Current Delay Time Report.

The following is the URL calling sequence for the Active or Future Stoppages Report :

https://corpslocks.usace.army.mil/lpwb/json.stall_stoppage or
https://corpslocks.usace.army.mil/lpwb/json.stall_stoppage?begin_date={day_mon_yr}&end_date={day_mon_yr}
where:

{day_mon_yr} is the 2-digit day, 2-digit month, and 4-digit year for the requested start/end date.

Try it here:

https://corpslocks.usace.army.mil/lpwb/json.stall_stoppage
https://corpslocks.usace.army.mil/lpwb/json.stall_stoppage?begin_date=01012020&end_date=31012020

The following is the URL calling sequence for the Locks with Current Delay Time Report:

https://corpslocks.usace.army.mil/lpwb/json.lock_delay

Try it here:

https://corpslocks.usace.army.mil/lpwb/json.lock_delay